Subtract 7/90 from 90/63
1st number: 1 27/63, 2nd number: 7/90
90/63 - 7/90 is 851/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Subtract the two like fractions:
900/630 - 49/630 = 900 - 49/630 = 851/630 - In mixed form: 1221/630
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