Add 7/60 and 42/21
1st number: 7/60, 2nd number: 2 0/21
7/60 + 42/21 is 127/60.
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,
42/21 = 42 × 20/21 × 20 = 840/420 - Add the two like fractions:
49/420 + 840/420 = 49 + 840/420 = 889/420 - 889/420 simplified gives 127/60
- So, 7/60 + 42/21 = 127/60
In mixed form: 27/60
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