Add 30/15 and 42/40
1st number: 2 0/15, 2nd number: 1 2/40
30/15 + 42/40 is 61/20.
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,
30/15 = 30 × 8/15 × 8 = 240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Add the two like fractions:
240/120 + 126/120 = 240 + 126/120 = 366/120 - 366/120 simplified gives 61/20
- So, 30/15 + 42/40 = 61/20
In mixed form: 31/20
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