Subtract 2/8 from 72/4
1st number: 18 0/4, 2nd number: 2/8
72/4 - 2/8 is 71/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
72/4 = 72 × 2/4 × 2 = 144/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
2/8 = 2 × 1/8 × 1 = 2/8 - Subtract the two like fractions:
144/8 - 2/8 = 144 - 2/8 = 142/8 - After reducing the fraction, the answer is 71/4
- In mixed form: 173/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-4/8 72/8-2/8 72/4-2/16 72/4-6/8 72/12-2/8 72/4-2/24 72/4-10/8 72/20-2/8 72/4-2/40 72/4-14/8 72/28-2/8 72/4-2/56