Subtract 75/70 from 32/20
1st number: 1 12/20, 2nd number: 1 5/70
32/20 - 75/70 is 37/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
32/20 = 32 × 7/20 × 7 = 224/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140 - Subtract the two like fractions:
224/140 - 150/140 = 224 - 150/140 = 74/140 - After reducing the fraction, the answer is 37/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/20-75/70 32/40-75/70 96/20-75/70 32/60-75/70