Add 21/28 and 1/16
21/28 + 1/16 is 13/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
21/28 = 21 × 4/28 × 4 = 84/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
1/16 = 1 × 7/16 × 7 = 7/112 - Add the two like fractions:
84/112 + 7/112 = 84 + 7/112 = 91/112 - 91/112 simplified gives 13/16
- So, 21/28 + 1/16 = 13/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28+1/16 21/28+2/16 21/56+1/16 21/28+1/32 63/28+1/16 21/28+3/16 21/84+1/16 21/28+1/48 21/28+5/16 21/28+1/80 21/28+7/16