Subtract 40/8 from 28/70
1st number: 28/70, 2nd number: 5 0/8
28/70 - 40/8 is -23/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
40/8 = 40 × 35/8 × 35 = 1400/280 - Subtract the two like fractions:
112/280 - 1400/280 = 112 - 1400/280 = -1288/280 - After reducing the fraction, the answer is -23/5
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