Subtract 28/90 from 54/56
54/56 - 28/90 is 823/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
54/56 = 54 × 45/56 × 45 = 2430/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
28/90 = 28 × 28/90 × 28 = 784/2520 - Subtract the two like fractions:
2430/2520 - 784/2520 = 2430 - 784/2520 = 1646/2520 - After reducing the fraction, the answer is 823/1260
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