Subtract 3/21 from 98/15
1st number: 6 8/15, 2nd number: 3/21
98/15 - 3/21 is 671/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
98/15 = 98 × 7/15 × 7 = 686/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
3/21 = 3 × 5/21 × 5 = 15/105 - Subtract the two like fractions:
686/105 - 15/105 = 686 - 15/105 = 671/105 - In mixed form: 641/105
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