Subtract 21/98 from 18/4
1st number: 4 2/4, 2nd number: 21/98
18/4 - 21/98 is 30/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 98 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 4 × 49 = 196,
18/4 = 18 × 49/4 × 49 = 882/196 - Likewise, for the 2nd fraction, since 98 × 2 = 196,
21/98 = 21 × 2/98 × 2 = 42/196 - Subtract the two like fractions:
882/196 - 42/196 = 882 - 42/196 = 840/196 - After reducing the fraction, the answer is 30/7
- In mixed form: 42/7
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