Add 60/8 and 8/21
1st number: 7 4/8, 2nd number: 8/21
60/8 + 8/21 is 331/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
60/8 = 60 × 21/8 × 21 = 1260/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
8/21 = 8 × 8/21 × 8 = 64/168 - Add the two like fractions:
1260/168 + 64/168 = 1260 + 64/168 = 1324/168 - 1324/168 simplified gives 331/42
- So, 60/8 + 8/21 = 331/42
In mixed form: 737/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+16/21 60/16+8/21 60/8+8/42 60/8+24/21 60/24+8/21 60/8+8/63 60/8+40/21 60/40+8/21 60/8+56/21 60/56+8/21