Subtract 40/6 from 90/14
1st number: 6 6/14, 2nd number: 6 4/6
90/14 - 40/6 is -5/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
90/14 = 90 × 3/14 × 3 = 270/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
40/6 = 40 × 7/6 × 7 = 280/42 - Subtract the two like fractions:
270/42 - 280/42 = 270 - 280/42 = -10/42 - After reducing the fraction, the answer is -5/21
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