Add 90/28 and 21/32
1st number: 3 6/28, 2nd number: 21/32
90/28 + 21/32 is 867/224.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
90/28 = 90 × 8/28 × 8 = 720/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
21/32 = 21 × 7/32 × 7 = 147/224 - Add the two like fractions:
720/224 + 147/224 = 720 + 147/224 = 867/224 - So, 90/28 + 21/32 = 867/224
In mixed form: 3195/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+42/32 90/56+21/32 90/28+21/64 90/28+63/32 90/84+21/32 90/28+21/96