Subtract 70/50 from 2/4, Solve 2/4 - 1 20/50 as a fraction

Subtract 70/50 from 2/4

1^st number: 2/4, 2^nd number: 1 20/50

2/4 - 70/50 is -9/10.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 50 is 100

Next, find the equivalent fraction of both fractional numbers with denominator 100
For the 1st fraction, since 4 × 25 = 100,
2/4 = 2 × 25/4 × 25 = 50/100
Likewise, for the 2nd fraction, since 50 × 2 = 100,
70/50 = 70 × 2/50 × 2 = 140/100
Subtract the two like fractions:
50/100 - 140/100 = 50 - 140/100 = -90/100
After reducing the fraction, the answer is -9/10

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