Add 3/40 and 81/15
1st number: 3/40, 2nd number: 5 6/15
3/40 + 81/15 is 219/40.
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,
3/40 = 3 × 3/40 × 3 = 9/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
81/15 = 81 × 8/15 × 8 = 648/120 - Add the two like fractions:
9/120 + 648/120 = 9 + 648/120 = 657/120 - 657/120 simplified gives 219/40
- So, 3/40 + 81/15 = 219/40
In mixed form: 519/40
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