Add 21/70 and 96/20
1st number: 21/70, 2nd number: 4 16/20
21/70 + 96/20 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
21/70 = 21 × 2/70 × 2 = 42/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
96/20 = 96 × 7/20 × 7 = 672/140 - Add the two like fractions:
42/140 + 672/140 = 42 + 672/140 = 714/140 - 714/140 simplified gives 51/10
- So, 21/70 + 96/20 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70+96/20 21/70+96/40 63/70+96/20 21/70+96/60