Subtract 45/15 from 54/56
1st number: 54/56, 2nd number: 3 0/15
54/56 - 45/15 is -57/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
54/56 = 54 × 15/56 × 15 = 810/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
45/15 = 45 × 56/15 × 56 = 2520/840 - Subtract the two like fractions:
810/840 - 2520/840 = 810 - 2520/840 = -1710/840 - After reducing the fraction, the answer is -57/28
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