Subtract 20/16 from 28/70
1st number: 28/70, 2nd number: 1 4/16
28/70 - 20/16 is -17/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
28/70 = 28 × 8/70 × 8 = 224/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
20/16 = 20 × 35/16 × 35 = 700/560 - Subtract the two like fractions:
224/560 - 700/560 = 224 - 700/560 = -476/560 - After reducing the fraction, the answer is -17/20
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