Subtract 4/45 from 90/18
1st number: 5 0/18, 2nd number: 4/45
90/18 - 4/45 is 221/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
90/18 = 90 × 5/18 × 5 = 450/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
4/45 = 4 × 2/45 × 2 = 8/90 - Subtract the two like fractions:
450/90 - 8/90 = 450 - 8/90 = 442/90 - After reducing the fraction, the answer is 221/45
- In mixed form: 441/45
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