Add 21/96 and 42/70
21/96 + 42/70 is 131/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 70 is 3360
Next, find the equivalent fraction of both fractional numbers with denominator 3360 - For the 1st fraction, since 96 × 35 = 3360,
21/96 = 21 × 35/96 × 35 = 735/3360 - Likewise, for the 2nd fraction, since 70 × 48 = 3360,
42/70 = 42 × 48/70 × 48 = 2016/3360 - Add the two like fractions:
735/3360 + 2016/3360 = 735 + 2016/3360 = 2751/3360 - 2751/3360 simplified gives 131/160
- So, 21/96 + 42/70 = 131/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/96+42/70 21/96+84/70 63/96+42/70