Add 15/8 and 28/15
1st number: 1 7/8, 2nd number: 1 13/15
15/8 + 28/15 is 449/120.
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,
15/8 = 15 × 15/8 × 15 = 225/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
28/15 = 28 × 8/15 × 8 = 224/120 - Add the two like fractions:
225/120 + 224/120 = 225 + 224/120 = 449/120 - So, 15/8 + 28/15 = 449/120
In mixed form: 389/120
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