Subtract 72/36 from 15/70
1st number: 15/70, 2nd number: 2 0/36
15/70 - 72/36 is -25/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
15/70 = 15 × 18/70 × 18 = 270/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
72/36 = 72 × 35/36 × 35 = 2520/1260 - Subtract the two like fractions:
270/1260 - 2520/1260 = 270 - 2520/1260 = -2250/1260 - After reducing the fraction, the answer is -25/14
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