Add 32/4 and 21/70
1st number: 8 0/4, 2nd number: 21/70
32/4 + 21/70 is 83/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
32/4 = 32 × 35/4 × 35 = 1120/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
21/70 = 21 × 2/70 × 2 = 42/140 - Add the two like fractions:
1120/140 + 42/140 = 1120 + 42/140 = 1162/140 - 1162/140 simplified gives 83/10
- So, 32/4 + 21/70 = 83/10
In mixed form: 83/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/4+21/70 32/4+42/70 32/8+21/70 96/4+21/70 32/4+63/70 32/12+21/70 32/20+21/70 32/28+21/70