Subtract 90/70 from 12/16
1st number: 12/16, 2nd number: 1 20/70
12/16 - 90/70 is -15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
12/16 = 12 × 35/16 × 35 = 420/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
90/70 = 90 × 8/70 × 8 = 720/560 - Subtract the two like fractions:
420/560 - 720/560 = 420 - 720/560 = -300/560 - After reducing the fraction, the answer is -15/28
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