Subtract 98/80 from 63/35, Solve 1 28/35

Subtract 98/80 from 63/35

1^st number: 1 28/35, 2^nd number: 1 18/80

63/35 - 98/80 is 23/40.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 35 × 16 = 560,
63/35 = 63 × 16/35 × 16 = 1008/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
98/80 = 98 × 7/80 × 7 = 686/560
Subtract the two like fractions:
1008/560 - 686/560 = 1008 - 686/560 = 322/560
After reducing the fraction, the answer is 23/40

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