Subtract 45/35 from 25/21
1st number: 1 4/21, 2nd number: 1 10/35
25/21 - 45/35 is -2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
25/21 = 25 × 5/21 × 5 = 125/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
45/35 = 45 × 3/35 × 3 = 135/105 - Subtract the two like fractions:
125/105 - 135/105 = 125 - 135/105 = -10/105 - After reducing the fraction, the answer is -2/21
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