Subtract 60/90 from 1/42
1/42 - 60/90 is -9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
1/42 = 1 × 15/42 × 15 = 15/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
60/90 = 60 × 7/90 × 7 = 420/630 - Subtract the two like fractions:
15/630 - 420/630 = 15 - 420/630 = -405/630 - After reducing the fraction, the answer is -9/14
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