Answers

Add 70/30 and 40/56

1^st number: 2 10/30, 2^nd number: 40/56

70/30 + 40/56 is 64/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 30 × 28 = 840,
   70/30 = 70 × 28/30 × 28 = 1960/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   40/56 = 40 × 15/56 × 15 = 600/840
4. Add the two like fractions:
   1960/840 + 600/840 = 1960 + 600/840 = 2560/840
5. 2560/840 simplified gives 64/21
6. So, 70/30 + 40/56 = 64/21
   In mixed form: 31/21

MathStep (Works offline)

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

Related: ⁷⁰/₃₀+⁸⁰/₅₆ ⁷⁰/₆₀+⁴⁰/₅₆ ⁷⁰/₉₀+⁴⁰/₅₆

Add Fractions Calculator