Subtract 72/15 from 30/56
1st number: 30/56, 2nd number: 4 12/15
30/56 - 72/15 is -597/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
30/56 = 30 × 15/56 × 15 = 450/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
72/15 = 72 × 56/15 × 56 = 4032/840 - Subtract the two like fractions:
450/840 - 4032/840 = 450 - 4032/840 = -3582/840 - After reducing the fraction, the answer is -597/140
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