Add 81/70 and 5/84
1st number: 1 11/70, 2nd number: 5/84
81/70 + 5/84 is 73/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 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 84 × 5 = 420,
5/84 = 5 × 5/84 × 5 = 25/420 - Add the two like fractions:
486/420 + 25/420 = 486 + 25/420 = 511/420 - 511/420 simplified gives 73/60
- So, 81/70 + 5/84 = 73/60
In mixed form: 113/60
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