Add 7/40 and 42/15
1st number: 7/40, 2nd number: 2 12/15
7/40 + 42/15 is 119/40.
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,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
42/15 = 42 × 8/15 × 8 = 336/120 - Add the two like fractions:
21/120 + 336/120 = 21 + 336/120 = 357/120 - 357/120 simplified gives 119/40
- So, 7/40 + 42/15 = 119/40
In mixed form: 239/40
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