Subtract 80/45 from 12/56
1st number: 12/56, 2nd number: 1 35/45
12/56 - 80/45 is -197/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
12/56 = 12 × 45/56 × 45 = 540/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
80/45 = 80 × 56/45 × 56 = 4480/2520 - Subtract the two like fractions:
540/2520 - 4480/2520 = 540 - 4480/2520 = -3940/2520 - After reducing the fraction, the answer is -197/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56-80/45 12/56-80/90 36/56-80/45 60/56-80/45 84/56-80/45