Add 36/60 and 21/42
36/60 + 21/42 is 11/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
36/60 = 36 × 7/60 × 7 = 252/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
21/42 = 21 × 10/42 × 10 = 210/420 - Add the two like fractions:
252/420 + 210/420 = 252 + 210/420 = 462/420 - 462/420 simplified gives 11/10
- So, 36/60 + 21/42 = 11/10
In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+21/42 36/60+21/84 36/60+63/42