Subtract 72/90 from 9/35
9/35 - 72/90 is -19/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
9/35 = 9 × 18/35 × 18 = 162/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Subtract the two like fractions:
162/630 - 504/630 = 162 - 504/630 = -342/630 - After reducing the fraction, the answer is -19/35
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