Subtract 25/80 from 70/54, Solve 1 16/54

Subtract 25/80 from 70/54

1^st number: 1 16/54, 2^nd number: 25/80

70/54 - 25/80 is 425/432.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160

Next, find the equivalent fraction of both fractional numbers with denominator 2160
For the 1st fraction, since 54 × 40 = 2160,
70/54 = 70 × 40/54 × 40 = 2800/2160
Likewise, for the 2nd fraction, since 80 × 27 = 2160,
25/80 = 25 × 27/80 × 27 = 675/2160
Subtract the two like fractions:
2800/2160 - 675/2160 = 2800 - 675/2160 = 2125/2160
After reducing the fraction, the answer is 425/432

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