Subtract 40/10 from 15/63
1st number: 15/63, 2nd number: 4 0/10
15/63 - 40/10 is -79/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Likewise, for the 2nd fraction, since 10 × 63 = 630,
40/10 = 40 × 63/10 × 63 = 2520/630 - Subtract the two like fractions:
150/630 - 2520/630 = 150 - 2520/630 = -2370/630 - After reducing the fraction, the answer is -79/21
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