Subtract 3/14 from 7/90
7/90 - 3/14 is -43/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
3/14 = 3 × 45/14 × 45 = 135/630 - Subtract the two like fractions:
49/630 - 135/630 = 49 - 135/630 = -86/630 - After reducing the fraction, the answer is -43/315
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