Add 10/21 and 7/60
10/21 + 7/60 is 83/140.
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,
10/21 = 10 × 20/21 × 20 = 200/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Add the two like fractions:
200/420 + 49/420 = 200 + 49/420 = 249/420 - 249/420 simplified gives 83/140
- So, 10/21 + 7/60 = 83/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+7/60 10/21+14/60 10/42+7/60 30/21+7/60 10/21+21/60 10/63+7/60 50/21+7/60 10/21+35/60 70/21+7/60 10/21+49/60