Subtract 84/10 from 21/50
1st number: 21/50, 2nd number: 8 4/10
21/50 - 84/10 is -399/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 50 × 1 = 50,
21/50 = 21 × 1/50 × 1 = 21/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
84/10 = 84 × 5/10 × 5 = 420/50 - Subtract the two like fractions:
21/50 - 420/50 = 21 - 420/50 = -399/50
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