Subtract 27/84 from 70/50, Solve 1 20/50

Subtract 27/84 from 70/50

1^st number: 1 20/50, 2^nd number: 27/84

70/50 - 27/84 is 151/140.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100

Next, find the equivalent fraction of both fractional numbers with denominator 2100
For the 1st fraction, since 50 × 42 = 2100,
70/50 = 70 × 42/50 × 42 = 2940/2100
Likewise, for the 2nd fraction, since 84 × 25 = 2100,
27/84 = 27 × 25/84 × 25 = 675/2100
Subtract the two like fractions:
2940/2100 - 675/2100 = 2940 - 675/2100 = 2265/2100
After reducing the fraction, the answer is 151/140
In mixed form: 111/140

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