Add 60/21 and 72/8
1st number: 2 18/21, 2nd number: 9 0/8
60/21 + 72/8 is 83/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
60/21 = 60 × 8/21 × 8 = 480/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
72/8 = 72 × 21/8 × 21 = 1512/168 - Add the two like fractions:
480/168 + 1512/168 = 480 + 1512/168 = 1992/168 - 1992/168 simplified gives 83/7
- So, 60/21 + 72/8 = 83/7
In mixed form: 116/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+72/8 60/21+72/16 60/63+72/8 60/21+72/24 60/21+72/40 60/21+72/56