Subtract 6/30 from 27/40
27/40 - 6/30 is 19/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
27/40 = 27 × 3/40 × 3 = 81/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
6/30 = 6 × 4/30 × 4 = 24/120 - Subtract the two like fractions:
81/120 - 24/120 = 81 - 24/120 = 57/120 - After reducing the fraction, the answer is 19/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-6/30 27/40-12/30 27/80-6/30 27/40-6/60 81/40-6/30 27/40-18/30 27/40-6/90 27/40-42/30