Subtract 75/70 from 2/4, Solve 2/4 - 1 5/70 as a fraction

Subtract 75/70 from 2/4

1^st number: 2/4, 2^nd number: 1 5/70

2/4 - 75/70 is -4/7.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 4 × 35 = 140,
2/4 = 2 × 35/4 × 35 = 70/140
Likewise, for the 2nd fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140
Subtract the two like fractions:
70/140 - 150/140 = 70 - 150/140 = -80/140
After reducing the fraction, the answer is -4/7

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