Answers

Add 2/21 and 70/64

1^st number: 2/21, 2^nd number: 1 6/64

2/21 + 70/64 is 799/672.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 21 × 64 = 1344,
   2/21 = 2 × 64/21 × 64 = 128/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   70/64 = 70 × 21/64 × 21 = 1470/1344
4. Add the two like fractions:
   128/1344 + 1470/1344 = 128 + 1470/1344 = 1598/1344
5. 1598/1344 simplified gives 799/672
6. So, 2/21 + 70/64 = 799/672
   In mixed form: 1127/672

MathStep (Works offline)

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

Related: ⁴/₂₁+⁷⁰/₆₄ ²/₄₂+⁷⁰/₆₄ ⁶/₂₁+⁷⁰/₆₄ ²/₆₃+⁷⁰/₆₄ ¹⁰/₂₁+⁷⁰/₆₄ ¹⁴/₂₁+⁷⁰/₆₄

Add Fractions Calculator