Subtract 60/72 from 50/70
50/70 - 60/72 is -5/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
50/70 = 50 × 36/70 × 36 = 1800/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
60/72 = 60 × 35/72 × 35 = 2100/2520 - Subtract the two like fractions:
1800/2520 - 2100/2520 = 1800 - 2100/2520 = -300/2520 - After reducing the fraction, the answer is -5/42
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