Subtract 21/10 from 7/80
1st number: 7/80, 2nd number: 2 1/10
780 - 2110 is -16180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
780 = 7 × 180 × 1 = 780 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
2110 = 21 × 810 × 8 = 16880 - Subtract the two like fractions:
780 - 16880 = 7 - 16880 = -16180
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