Add 81/20 and 70/15
1st number: 4 1/20, 2nd number: 4 10/15
81/20 + 70/15 is 523/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
70/15 = 70 × 4/15 × 4 = 280/60 - Add the two like fractions:
243/60 + 280/60 = 243 + 280/60 = 523/60 - So, 81/20 + 70/15 = 523/60
In mixed form: 843/60
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