Subtract 12/70 from 63/20
1st number: 3 3/20, 2nd number: 12/70
63/20 - 12/70 is 417/140.
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,
63/20 = 63 × 7/20 × 7 = 441/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
12/70 = 12 × 2/70 × 2 = 24/140 - Subtract the two like fractions:
441/140 - 24/140 = 441 - 24/140 = 417/140 - In mixed form: 2137/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/20-24/70 63/40-12/70 63/20-36/70 63/60-12/70 63/20-60/70 63/20-84/70