Add 21/42 and 49/60
21/42 + 49/60 is 79/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
21/42 = 21 × 10/42 × 10 = 210/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
49/60 = 49 × 7/60 × 7 = 343/420 - Add the two like fractions:
210/420 + 343/420 = 210 + 343/420 = 553/420 - 553/420 simplified gives 79/60
- So, 21/42 + 49/60 = 79/60
In mixed form: 119/60
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