Subtract 21/5 from 30/56
1st number: 30/56, 2nd number: 4 1/5
30/56 - 21/5 is -513/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
30/56 = 30 × 5/56 × 5 = 150/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
21/5 = 21 × 56/5 × 56 = 1176/280 - Subtract the two like fractions:
150/280 - 1176/280 = 150 - 1176/280 = -1026/280 - After reducing the fraction, the answer is -513/140
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