Add 81/60 and 35/21
1st number: 1 21/60, 2nd number: 1 14/21
81/60 + 35/21 is 181/60.
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,
81/60 = 81 × 7/60 × 7 = 567/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
35/21 = 35 × 20/21 × 20 = 700/420 - Add the two like fractions:
567/420 + 700/420 = 567 + 700/420 = 1267/420 - 1267/420 simplified gives 181/60
- So, 81/60 + 35/21 = 181/60
In mixed form: 31/60
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