Add 21/16 and 90/56
1st number: 1 5/16, 2nd number: 1 34/56
21/16 + 90/56 is 327/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 56 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Likewise, for the 2nd fraction, since 56 × 2 = 112,
90/56 = 90 × 2/56 × 2 = 180/112 - Add the two like fractions:
147/112 + 180/112 = 147 + 180/112 = 327/112 - So, 21/16 + 90/56 = 327/112
In mixed form: 2103/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16+90/56 21/32+90/56 63/16+90/56 21/48+90/56 21/80+90/56