Subtract 49/90 from 45/21
1st number: 2 3/21, 2nd number: 49/90
45/21 - 49/90 is 1007/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
45/21 = 45 × 30/21 × 30 = 1350/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630 - Subtract the two like fractions:
1350/630 - 343/630 = 1350 - 343/630 = 1007/630 - In mixed form: 1377/630
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