Subtract 81/10 from 3/75
1st number: 3/75, 2nd number: 8 1/10
3/75 - 81/10 is -403/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 10 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
3/75 = 3 × 2/75 × 2 = 6/150 - Likewise, for the 2nd fraction, since 10 × 15 = 150,
81/10 = 81 × 15/10 × 15 = 1215/150 - Subtract the two like fractions:
6/150 - 1215/150 = 6 - 1215/150 = -1209/150 - After reducing the fraction, the answer is -403/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/75-81/10 3/75-81/20 9/75-81/10 3/75-81/30 15/75-81/10 3/75-81/50 21/75-81/10 3/75-81/70