Add 30/8 and 9/15
1st number: 3 6/8, 2nd number: 9/15
30/8 + 9/15 is 87/20.
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,
9/15 = 9 × 8/15 × 8 = 72/120 - Add the two like fractions:
450/120 + 72/120 = 450 + 72/120 = 522/120 - 522/120 simplified gives 87/20
- So, 30/8 + 9/15 = 87/20
In mixed form: 47/20
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