Subtract 81/16 from 35/70
1st number: 35/70, 2nd number: 5 1/16
35/70 - 81/16 is -73/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
35/70 = 35 × 8/70 × 8 = 280/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
81/16 = 81 × 35/16 × 35 = 2835/560 - Subtract the two like fractions:
280/560 - 2835/560 = 280 - 2835/560 = -2555/560 - After reducing the fraction, the answer is -73/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 35/70-81/32 35/70-81/48 35/70-81/80