Subtract 4/90 from 30/18
1st number: 1 12/18, 2nd number: 4/90
30/18 - 4/90 is 73/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
30/18 = 30 × 5/18 × 5 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Subtract the two like fractions:
150/90 - 4/90 = 150 - 4/90 = 146/90 - After reducing the fraction, the answer is 73/45
- In mixed form: 128/45
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