Subtract 27/40 from 84/15
1st number: 5 9/15, 2nd number: 27/40
84/15 - 27/40 is 197/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
84/15 = 84 × 8/15 × 8 = 672/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
27/40 = 27 × 3/40 × 3 = 81/120 - Subtract the two like fractions:
672/120 - 81/120 = 672 - 81/120 = 591/120 - After reducing the fraction, the answer is 197/40
- In mixed form: 437/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15-54/40 84/30-27/40 84/15-27/80 84/15-81/40 84/45-27/40 84/75-27/40