Add 30/8 and 42/15
1st number: 3 6/8, 2nd number: 2 12/15
30/8 + 42/15 is 131/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
30/8 = 30 × 15/8 × 15 = 450/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
42/15 = 42 × 8/15 × 8 = 336/120 - Add the two like fractions:
450/120 + 336/120 = 450 + 336/120 = 786/120 - 786/120 simplified gives 131/20
- So, 30/8 + 42/15 = 131/20
In mixed form: 611/20
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