Add 12/15 and 42/40
1st number: 12/15, 2nd number: 1 2/40
12/15 + 42/40 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
12/15 = 12 × 8/15 × 8 = 96/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Add the two like fractions:
96/120 + 126/120 = 96 + 126/120 = 222/120 - 222/120 simplified gives 37/20
- So, 12/15 + 42/40 = 37/20
In mixed form: 117/20
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