Subtract 45/21 from 30/98
1st number: 30/98, 2nd number: 2 3/21
30/98 - 45/21 is -90/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
30/98 = 30 × 3/98 × 3 = 90/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
45/21 = 45 × 14/21 × 14 = 630/294 - Subtract the two like fractions:
90/294 - 630/294 = 90 - 630/294 = -540/294 - After reducing the fraction, the answer is -90/49
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