Subtract 40/35 from 20/18
1st number: 1 2/18, 2nd number: 1 5/35
20/18 - 40/35 is -2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630 - For the 1st fraction, since 18 × 35 = 630,
20/18 = 20 × 35/18 × 35 = 700/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
40/35 = 40 × 18/35 × 18 = 720/630 - Subtract the two fractions:
700/630 - 720/630 = 700 - 720/630 = -20/630 - After reducing the fraction, the answer is -2/63
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