Subtract 20/70 from 42/16
1st number: 2 10/16, 2nd number: 20/70
42/16 - 20/70 is 131/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
42/16 = 42 × 35/16 × 35 = 1470/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
20/70 = 20 × 8/70 × 8 = 160/560 - Subtract the two like fractions:
1470/560 - 160/560 = 1470 - 160/560 = 1310/560 - After reducing the fraction, the answer is 131/56
- In mixed form: 219/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-20/70 42/16-40/70 42/32-20/70 42/16-60/70 42/48-20/70 42/80-20/70