Answers

Add 42/21 and 1/64

1^st number: 2 0/21, 2^nd number: 1/64

42/21 + 1/64 is 129/64.

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,
   42/21 = 42 × 64/21 × 64 = 2688/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   1/64 = 1 × 21/64 × 21 = 21/1344
4. Add the two like fractions:
   2688/1344 + 21/1344 = 2688 + 21/1344 = 2709/1344
5. 2709/1344 simplified gives 129/64
6. So, 42/21 + 1/64 = 129/64
   In mixed form: 21/64

MathStep (Works offline)

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

Related: ⁸⁴/₂₁+¹/₆₄ ⁴²/₂₁+²/₆₄ ⁴²/₂₁+³/₆₄ ⁴²/₆₃+¹/₆₄ ⁴²/₂₁+⁵/₆₄ ⁴²/₂₁+⁷/₆₄

Add Fractions Calculator