Subtract 7/5 from 27/30
1st number: 27/30, 2nd number: 1 2/5
27/30 - 7/5 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
27/30 = 27 × 1/30 × 1 = 27/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
7/5 = 7 × 6/5 × 6 = 42/30 - Subtract the two like fractions:
27/30 - 42/30 = 27 - 42/30 = -15/30 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-7/5 27/30-14/5 27/60-7/5 27/30-7/10 81/30-7/5 27/30-21/5 27/90-7/5 27/30-7/15 27/30-35/5 27/30-7/25 27/30-49/5 27/30-7/35