Subtract 72/14 from 70/15
1st number: 4 10/15, 2nd number: 5 2/14
70/15 - 72/14 is -10/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
72/14 = 72 × 15/14 × 15 = 1080/210 - Subtract the two like fractions:
980/210 - 1080/210 = 980 - 1080/210 = -100/210 - After reducing the fraction, the answer is -10/21
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