Add 70/4 and 21/64
1st number: 17 2/4, 2nd number: 21/64
70/4 + 21/64 is 1141/64.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 64 is 64
Next, find the equivalent fraction of both fractional numbers with denominator 64 - For the 1st fraction, since 4 × 16 = 64,
70/4 = 70 × 16/4 × 16 = 1120/64 - Likewise, for the 2nd fraction, since 64 × 1 = 64,
21/64 = 21 × 1/64 × 1 = 21/64 - Add the two like fractions:
1120/64 + 21/64 = 1120 + 21/64 = 1141/64 - So, 70/4 + 21/64 = 1141/64
In mixed form: 1753/64
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4+42/64 70/8+21/64 70/4+63/64 70/12+21/64 70/20+21/64 70/28+21/64