Subtract 70/80 from 28/14
1st number: 2 0/14, 2nd number: 70/80
28/14 - 70/80 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
28/14 = 28 × 40/14 × 40 = 1120/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Subtract the two like fractions:
1120/560 - 490/560 = 1120 - 490/560 = 630/560 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
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