Subtract 90/30 from 28/56
1st number: 28/56, 2nd number: 3 0/30
28/56 - 90/30 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
90/30 = 90 × 28/30 × 28 = 2520/840 - Subtract the two like fractions:
420/840 - 2520/840 = 420 - 2520/840 = -2100/840 - After reducing the fraction, the answer is -5/2
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