Subtract 18/16 from 70/40
1st number: 1 30/40, 2nd number: 1 2/16
70/40 - 18/16 is 5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
70/40 = 70 × 2/40 × 2 = 140/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
18/16 = 18 × 5/16 × 5 = 90/80 - Subtract the two like fractions:
140/80 - 90/80 = 140 - 90/80 = 50/80 - After reducing the fraction, the answer is 5/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-36/16 70/80-18/16 70/40-18/32 70/40-54/16 70/40-18/48 70/40-90/16 70/40-18/80