Subtract 75/63 from 1/30
1st number: 1/30, 2nd number: 1 12/63
1/30 - 75/63 is -81/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
1/30 = 1 × 21/30 × 21 = 21/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
75/63 = 75 × 10/63 × 10 = 750/630 - Subtract the two like fractions:
21/630 - 750/630 = 21 - 750/630 = -729/630 - After reducing the fraction, the answer is -81/70
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