Add 72/16 and 21/60
1st number: 4 8/16, 2nd number: 21/60
72/16 + 21/60 is 97/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
72/16 = 72 × 15/16 × 15 = 1080/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Add the two like fractions:
1080/240 + 84/240 = 1080 + 84/240 = 1164/240 - 1164/240 simplified gives 97/20
- So, 72/16 + 21/60 = 97/20
In mixed form: 417/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/16+42/60 72/32+21/60 72/16+63/60 72/48+21/60 72/80+21/60