Subtract 21/6 from 45/25
1st number: 1 20/25, 2nd number: 3 3/6
45/25 - 21/6 is -17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
45/25 = 45 × 6/25 × 6 = 270/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150 - Subtract the two like fractions:
270/150 - 525/150 = 270 - 525/150 = -255/150 - After reducing the fraction, the answer is -17/10
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