Subtract 28/70 from 9/24
9/24 - 28/70 is -1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
9/24 = 9 × 35/24 × 35 = 315/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
28/70 = 28 × 12/70 × 12 = 336/840 - Subtract the two like fractions:
315/840 - 336/840 = 315 - 336/840 = -21/840 - After reducing the fraction, the answer is -1/40
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