Subtract 70/8 from 40/49
1st number: 40/49, 2nd number: 8 6/8
40/49 - 70/8 is -1555/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
40/49 = 40 × 8/49 × 8 = 320/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
70/8 = 70 × 49/8 × 49 = 3430/392 - Subtract the two like fractions:
320/392 - 3430/392 = 320 - 3430/392 = -3110/392 - After reducing the fraction, the answer is -1555/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/49-70/8 40/98-70/8 40/49-70/16 40/49-70/24 40/49-70/40 40/49-70/56