Subtract 75/90 from 40/14
1st number: 2 12/14, 2nd number: 75/90
40/14 - 75/90 is 85/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
40/14 = 40 × 45/14 × 45 = 1800/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
75/90 = 75 × 7/90 × 7 = 525/630 - Subtract the two like fractions:
1800/630 - 525/630 = 1800 - 525/630 = 1275/630 - After reducing the fraction, the answer is 85/42
- In mixed form: 21/42
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