Subtract 12/56 from 45/49
45/49 - 12/56 is 69/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
45/49 = 45 × 8/49 × 8 = 360/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
12/56 = 12 × 7/56 × 7 = 84/392 - Subtract the two like fractions:
360/392 - 84/392 = 360 - 84/392 = 276/392 - After reducing the fraction, the answer is 69/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-12/56 45/49-24/56 45/98-12/56 45/49-36/56 45/49-60/56 45/49-84/56