Subtract 27/50 from 30/70
30/70 - 27/50 is -39/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
30/70 = 30 × 5/70 × 5 = 150/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
27/50 = 27 × 7/50 × 7 = 189/350 - Subtract the two like fractions:
150/350 - 189/350 = 150 - 189/350 = -39/350
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