Subtract 56/70 from 72/90
72/90 - 56/70 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
56/70 = 56 × 9/70 × 9 = 504/630 - Subtract the two like fractions:
504/630 - 504/630 = 504 - 504/630 = 0/630 - The answer is 0
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