Add 36/21 and 15/60
1st number: 1 15/21, 2nd number: 15/60
36/21 + 15/60 is 55/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
36/21 = 36 × 20/21 × 20 = 720/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
15/60 = 15 × 7/60 × 7 = 105/420 - Add the two like fractions:
720/420 + 105/420 = 720 + 105/420 = 825/420 - 825/420 simplified gives 55/28
- So, 36/21 + 15/60 = 55/28
In mixed form: 127/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+15/60 36/21+30/60 36/42+15/60 36/21+45/60 36/63+15/60 36/21+75/60