Subtract 72/10 from 28/7
1st number: 4 0/7, 2nd number: 7 2/10
28/7 - 72/10 is -16/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
28/7 = 28 × 10/7 × 10 = 280/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
72/10 = 72 × 7/10 × 7 = 504/70 - Subtract the two like fractions:
280/70 - 504/70 = 280 - 504/70 = -224/70 - After reducing the fraction, the answer is -16/5
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