Subtract 98/80 from 16/84, Solve 16/84

Subtract 98/80 from 16/84

1^st number: 16/84, 2^nd number: 1 18/80

16/84 - 98/80 is -869/840.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 84 × 20 = 1680,
16/84 = 16 × 20/84 × 20 = 320/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
98/80 = 98 × 21/80 × 21 = 2058/1680
Subtract the two like fractions:
320/1680 - 2058/1680 = 320 - 2058/1680 = -1738/1680
After reducing the fraction, the answer is -869/840

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