Add 42/30 and 15/8
1st number: 1 12/30, 2nd number: 1 7/8
42/30 + 15/8 is 131/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
42/30 = 42 × 4/30 × 4 = 168/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Add the two like fractions:
168/120 + 225/120 = 168 + 225/120 = 393/120 - 393/120 simplified gives 131/40
- So, 42/30 + 15/8 = 131/40
In mixed form: 311/40
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