Subtract 7/15 from 12/8
1st number: 1 4/8, 2nd number: 7/15
12/8 - 7/15 is 31/30.
Steps for subtracting 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,
12/8 = 12 × 15/8 × 15 = 180/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Subtract the two like fractions:
180/120 - 56/120 = 180 - 56/120 = 124/120 - After reducing the fraction, the answer is 31/30
- In mixed form: 11/30
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