Subtract 36/84 from 72/40
1st number: 1 32/40, 2nd number: 36/84
72/40 - 36/84 is 48/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
72/40 = 72 × 21/40 × 21 = 1512/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
36/84 = 36 × 10/84 × 10 = 360/840 - Subtract the two like fractions:
1512/840 - 360/840 = 1512 - 360/840 = 1152/840 - After reducing the fraction, the answer is 48/35
- In mixed form: 113/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40-72/84 72/80-36/84