Subtract 63/70 from 63/12
1st number: 5 3/12, 2nd number: 63/70
63/12 - 63/70 is 87/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
63/12 = 63 × 35/12 × 35 = 2205/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
63/70 = 63 × 6/70 × 6 = 378/420 - Subtract the two like fractions:
2205/420 - 378/420 = 2205 - 378/420 = 1827/420 - After reducing the fraction, the answer is 87/20
- In mixed form: 47/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/24-63/70 63/36-63/70 63/60-63/70 63/84-63/70