Answers

Subtract 40/45 from 84/56

1^st number: 1 28/56, 2^nd number: 40/45

84/56 - 40/45 is 11/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 45 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 56 × 45 = 2520,
   84/56 = 84 × 45/56 × 45 = 3780/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   40/45 = 40 × 56/45 × 56 = 2240/2520
4. Subtract the two like fractions:
   3780/2520 - 2240/2520 = 3780 - 2240/2520 = 1540/2520
5. After reducing the fraction, the answer is 11/18

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₅₆-⁸⁰/₄₅ ⁸⁴/₅₆-⁴⁰/₉₀

Subtract Fractions Calculator