Subtract 70/16 from 42/25
1st number: 1 17/25, 2nd number: 4 6/16
42/25 - 70/16 is -539/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 16 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
42/25 = 42 × 16/25 × 16 = 672/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
70/16 = 70 × 25/16 × 25 = 1750/400 - Subtract the two like fractions:
672/400 - 1750/400 = 672 - 1750/400 = -1078/400 - After reducing the fraction, the answer is -539/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25-70/16 42/50-70/16 42/25-70/32 42/75-70/16 42/25-70/48 42/25-70/80