Subtract 42/10 from 54/84
1st number: 54/84, 2nd number: 4 2/10
54/84 - 42/10 is -249/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
54/84 = 54 × 5/84 × 5 = 270/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
42/10 = 42 × 42/10 × 42 = 1764/420 - Subtract the two like fractions:
270/420 - 1764/420 = 270 - 1764/420 = -1494/420 - After reducing the fraction, the answer is -249/70
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