Subtract 84/80 from 49/21
1st number: 2 7/21, 2nd number: 1 4/80
49/21 - 84/80 is 77/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
49/21 = 49 × 80/21 × 80 = 3920/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
84/80 = 84 × 21/80 × 21 = 1764/1680 - Subtract the two like fractions:
3920/1680 - 1764/1680 = 3920 - 1764/1680 = 2156/1680 - After reducing the fraction, the answer is 77/60
- In mixed form: 117/60
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