Subtract 30/70 from 16/12
1st number: 1 4/12, 2nd number: 30/70
16/12 - 30/70 is 19/21.
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,
16/12 = 16 × 35/12 × 35 = 560/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
30/70 = 30 × 6/70 × 6 = 180/420 - Subtract the two like fractions:
560/420 - 180/420 = 560 - 180/420 = 380/420 - After reducing the fraction, the answer is 19/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/12-30/70 16/12-60/70 16/24-30/70 48/12-30/70 16/12-90/70 16/36-30/70 80/12-30/70 16/60-30/70 16/84-30/70