Subtract 8/90 from 5/7
5/7 - 8/90 is 197/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
5/7 = 5 × 90/7 × 90 = 450/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Subtract the two like fractions:
450/630 - 56/630 = 450 - 56/630 = 394/630 - After reducing the fraction, the answer is 197/315
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