Subtract 72/50 from 24/45
1st number: 24/45, 2nd number: 1 22/50
24/45 - 72/50 is -68/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
24/45 = 24 × 10/45 × 10 = 240/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
72/50 = 72 × 9/50 × 9 = 648/450 - Subtract the two like fractions:
240/450 - 648/450 = 240 - 648/450 = -408/450 - After reducing the fraction, the answer is -68/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/45-72/50 24/90-72/50 72/45-72/50