Add 7/60 and 10/21
7/60 + 10/21 is 83/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
10/21 = 10 × 20/21 × 20 = 200/420 - Add the two like fractions:
49/420 + 200/420 = 49 + 200/420 = 249/420 - 249/420 simplified gives 83/140
- So, 7/60 + 10/21 = 83/140
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