Subtract 1/90 from 49/63
49/63 - 1/90 is 23/30.
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,
49/63 = 49 × 10/63 × 10 = 490/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
1/90 = 1 × 7/90 × 7 = 7/630 - Subtract the two like fractions:
490/630 - 7/630 = 490 - 7/630 = 483/630 - After reducing the fraction, the answer is 23/30
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