Subtract 7/45 from 18/4
1st number: 4 2/4, 2nd number: 7/45
18/4 - 7/45 is 391/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
18/4 = 18 × 45/4 × 45 = 810/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Subtract the two like fractions:
810/180 - 28/180 = 810 - 28/180 = 782/180 - After reducing the fraction, the answer is 391/90
- In mixed form: 431/90
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