Add 1/21 and 7/60
1/21 + 7/60 is 23/140.
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,
1/21 = 1 × 20/21 × 20 = 20/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Add the two like fractions:
20/420 + 49/420 = 20 + 49/420 = 69/420 - 69/420 simplified gives 23/140
- So, 1/21 + 7/60 = 23/140
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