Subtract 84/21 from 7/35
1st number: 7/35, 2nd number: 4 0/21
7/35 - 84/21 is -19/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
7/35 = 7 × 3/35 × 3 = 21/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
84/21 = 84 × 5/21 × 5 = 420/105 - Subtract the two like fractions:
21/105 - 420/105 = 21 - 420/105 = -399/105 - After reducing the fraction, the answer is -19/5
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