Subtract 42/45 from 49/18
1st number: 2 13/18, 2nd number: 42/45
49/18 - 42/45 is 161/90.
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,
49/18 = 49 × 5/18 × 5 = 245/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Subtract the two like fractions:
245/90 - 84/90 = 245 - 84/90 = 161/90 - In mixed form: 171/90
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