Subtract 70/16 from 40/84
1st number: 40/84, 2nd number: 4 6/16
40/84 - 70/16 is -655/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
40/84 = 40 × 4/84 × 4 = 160/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Subtract the two like fractions:
160/336 - 1470/336 = 160 - 1470/336 = -1310/336 - After reducing the fraction, the answer is -655/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84-70/16 40/84-70/32 40/84-70/48 40/84-70/80