Subtract 1/30 from 35/20
1st number: 1 15/20, 2nd number: 1/30
35/20 - 1/30 is 103/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
35/20 = 35 × 3/20 × 3 = 105/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
1/30 = 1 × 2/30 × 2 = 2/60 - Subtract the two like fractions:
105/60 - 2/60 = 105 - 2/60 = 103/60 - In mixed form: 143/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-1/30 35/20-2/30 35/40-1/30 35/20-1/60 35/20-3/30 35/60-1/30 35/20-1/90 35/20-5/30 35/20-7/30