Subtract 21/7 from 45/50
1st number: 45/50, 2nd number: 3 0/7
45/50 - 21/7 is -21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 7 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
45/50 = 45 × 7/50 × 7 = 315/350 - Likewise, for the 2nd fraction, since 7 × 50 = 350,
21/7 = 21 × 50/7 × 50 = 1050/350 - Subtract the two like fractions:
315/350 - 1050/350 = 315 - 1050/350 = -735/350 - After reducing the fraction, the answer is -21/10
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