Subtract 70/40 from 12/75
1st number: 12/75, 2nd number: 1 30/40
12/75 - 70/40 is -159/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
12/75 = 12 × 8/75 × 8 = 96/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
70/40 = 70 × 15/40 × 15 = 1050/600 - Subtract the two like fractions:
96/600 - 1050/600 = 96 - 1050/600 = -954/600 - After reducing the fraction, the answer is -159/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75-70/40 12/75-70/80 36/75-70/40 60/75-70/40 84/75-70/40