Add 81/40 and 50/15
1st number: 2 1/40, 2nd number: 3 5/15
81/40 + 50/15 is 643/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
81/40 = 81 × 3/40 × 3 = 243/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
50/15 = 50 × 8/15 × 8 = 400/120 - Add the two like fractions:
243/120 + 400/120 = 243 + 400/120 = 643/120 - So, 81/40 + 50/15 = 643/120
In mixed form: 543/120
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