Add 81/70 and 12/60
1st number: 1 11/70, 2nd number: 12/60
81/70 + 12/60 is 19/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
81/70 = 81 × 6/70 × 6 = 486/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
12/60 = 12 × 7/60 × 7 = 84/420 - Add the two like fractions:
486/420 + 84/420 = 486 + 84/420 = 570/420 - 570/420 simplified gives 19/14
- So, 81/70 + 12/60 = 19/14
In mixed form: 15/14
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