Subtract 49/72 from 9/70
9/70 - 49/72 is -1391/2520.
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,
9/70 = 9 × 36/70 × 36 = 324/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
49/72 = 49 × 35/72 × 35 = 1715/2520 - Subtract the two like fractions:
324/2520 - 1715/2520 = 324 - 1715/2520 = -1391/2520
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