# What is 4/9 - 1/7?

getcalc.com's **two fractions subtraction calculator** is an online basic math function tool to find what's the equivalent fraction for difference between two fractional numbers with different, unequal or unlike denominators 4/9 and 1/7.

4/9 - 1/7 = 19/63 in fraction form

4/9 - 1/7 = 0.3016 in decimal form

This calculator, formula, step by step calculation and associated information to find the difference between 4/9 and 1/7 may help students, teachers,
parents or professionals to learn, teach, practice or verify such two fractions subtraction calculations efficiently.

## How to Find Equivalent Fraction for 4/9-1/7?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/7 from 4/9. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 4/9 minus 1/7.

1. LCM method

2. Cross multiplication method.

__Problem and Workout - LCM Method__

What is 4/9 minus 1/7 as a fraction by subtraction using LCM method?

step 1 Address *formula*, input parameters and values.

Input parameters and values:

4/9 & 1/7

4/9-1/7 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators

The LCM for 9 and 7 is 63.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator

=(4 x 63)/(9 x 63)-(1 x 63)/(7 x 63)

=28/63-9/63

=(28 - 9)/63

step 4 Find difference between numerators and rewrite it in a single form.

=19/63

4/9-1/7=19/63

By using LCM method, **19/63** is the equivalent fraction by subtracting 1/7 from 4/9.

__Problem and Workout - Cross Multiplication Method__

step 1 Address formula and input values.

Input values:

4/9 & 1/7

4/9 - 1/7 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below

= (4 x 7) - (1 x 9)/(9 x 7)

step 3 Simplify and rewrite the fraction

= (28 - 9)/63

4/9-1/7 = 19/63

By using cross multiplication method, **19/63** is the difference between two fractions 4/9 and 1/7.