Subtract 6/42 from 18/45
18/45 - 6/42 is 9/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
6/42 = 6 × 15/42 × 15 = 90/630 - Subtract the two like fractions:
252/630 - 90/630 = 252 - 90/630 = 162/630 - After reducing the fraction, the answer is 9/35
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