Answers

Add 70/75 and 21/10

1^st number: 70/75, 2^nd number: 2 1/10

70/75 + 21/10 is 91/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 10 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 75 × 2 = 150,
   70/75 = 70 × 2/75 × 2 = 140/150
3. Likewise, for the 2nd fraction, since 10 × 15 = 150,
   21/10 = 21 × 15/10 × 15 = 315/150
4. Add the two like fractions:
   140/150 + 315/150 = 140 + 315/150 = 455/150
5. 455/150 simplified gives 91/30
6. So, 70/75 + 21/10 = 91/30
   In mixed form: 31/30

MathStep (Works offline)

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

Related: ⁷⁰/₇₅+⁴²/₁₀ ⁷⁰/₇₅+²¹/₂₀ ⁷⁰/₇₅+⁶³/₁₀ ⁷⁰/₇₅+²¹/₃₀ ⁷⁰/₇₅+²¹/₅₀ ⁷⁰/₇₅+²¹/₇₀

Add Fractions Calculator