Subtract 40/18 from 72/50
1st number: 1 22/50, 2nd number: 2 4/18
72/50 - 40/18 is -176/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
72/50 = 72 × 9/50 × 9 = 648/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
40/18 = 40 × 25/18 × 25 = 1000/450 - Subtract the two like fractions:
648/450 - 1000/450 = 648 - 1000/450 = -352/450 - After reducing the fraction, the answer is -176/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/50-80/18 72/50-40/36 72/50-40/54 72/50-40/90