Subtract 12/36 from 45/70
45/70 - 12/36 is 13/42.
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,
45/70 = 45 × 18/70 × 18 = 810/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
12/36 = 12 × 35/36 × 35 = 420/1260 - Subtract the two like fractions:
810/1260 - 420/1260 = 810 - 420/1260 = 390/1260 - After reducing the fraction, the answer is 13/42
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