Add 21/7 and 90/96
1st number: 3 0/7, 2nd number: 90/96
21/7 + 90/96 is 63/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 96 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 7 × 96 = 672,
21/7 = 21 × 96/7 × 96 = 2016/672 - Likewise, for the 2nd fraction, since 96 × 7 = 672,
90/96 = 90 × 7/96 × 7 = 630/672 - Add the two like fractions:
2016/672 + 630/672 = 2016 + 630/672 = 2646/672 - 2646/672 simplified gives 63/16
- So, 21/7 + 90/96 = 63/16
In mixed form: 315/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/7+90/96 21/14+90/96 63/7+90/96 21/35+90/96 21/49+90/96