Subtract 20/18 from 30/35
1st number: 30/35, 2nd number: 1 2/18
30/35 - 20/18 is -16/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
30/35 = 30 × 18/35 × 18 = 540/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
20/18 = 20 × 35/18 × 35 = 700/630 - Subtract the two like fractions:
540/630 - 700/630 = 540 - 700/630 = -160/630 - After reducing the fraction, the answer is -16/63
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