Subtract 63/70 from 12/8
1st number: 1 4/8, 2nd number: 63/70
12/8 - 63/70 is 3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
12/8 = 12 × 35/8 × 35 = 420/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
63/70 = 63 × 4/70 × 4 = 252/280 - Subtract the two like fractions:
420/280 - 252/280 = 420 - 252/280 = 168/280 - After reducing the fraction, the answer is 3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8-63/70 12/16-63/70 36/8-63/70 12/24-63/70 60/8-63/70 12/40-63/70 84/8-63/70 12/56-63/70