Subtract 4/90 from 28/84
28/84 - 4/90 is 13/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
28/84 = 28 × 15/84 × 15 = 420/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
4/90 = 4 × 14/90 × 14 = 56/1260 - Subtract the two like fractions:
420/1260 - 56/1260 = 420 - 56/1260 = 364/1260 - After reducing the fraction, the answer is 13/45
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