Answers

Add 56/35 and 54/72

1^st number: 1 21/35, 2^nd number: 54/72

56/35 + 54/72 is 47/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 35 × 72 = 2520,
   56/35 = 56 × 72/35 × 72 = 4032/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   54/72 = 54 × 35/72 × 35 = 1890/2520
4. Add the two like fractions:
   4032/2520 + 1890/2520 = 4032 + 1890/2520 = 5922/2520
5. 5922/2520 simplified gives 47/20
6. So, 56/35 + 54/72 = 47/20
   In mixed form: 27/20

MathStep (Works offline)

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

Related: ⁵⁶/₇₀+⁵⁴/₇₂

Add Fractions Calculator