Subtract 90/35 from 81/4
1st number: 20 1/4, 2nd number: 2 20/35
81/4 - 90/35 is 495/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
81/4 = 81 × 35/4 × 35 = 2835/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
90/35 = 90 × 4/35 × 4 = 360/140 - Subtract the two like fractions:
2835/140 - 360/140 = 2835 - 360/140 = 2475/140 - After reducing the fraction, the answer is 495/28
- In mixed form: 1719/28
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