Subtract 70/63 from 30/70
1st number: 30/70, 2nd number: 1 7/63
30/70 - 70/63 is -43/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
70/63 = 70 × 10/63 × 10 = 700/630 - Subtract the two like fractions:
270/630 - 700/630 = 270 - 700/630 = -430/630 - After reducing the fraction, the answer is -43/63
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