Add 15/40 and 42/3
1st number: 15/40, 2nd number: 14 0/3
15/40 + 42/3 is 115/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Likewise, for the 2nd fraction, since 3 × 40 = 120,
42/3 = 42 × 40/3 × 40 = 1680/120 - Add the two like fractions:
45/120 + 1680/120 = 45 + 1680/120 = 1725/120 - 1725/120 simplified gives 115/8
- So, 15/40 + 42/3 = 115/8
In mixed form: 143/8
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