Subtract 30/7 from 56/15
1st number: 3 11/15, 2nd number: 4 2/7
56/15 - 30/7 is -58/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
56/15 = 56 × 7/15 × 7 = 392/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
30/7 = 30 × 15/7 × 15 = 450/105 - Subtract the two like fractions:
392/105 - 450/105 = 392 - 450/105 = -58/105
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