Subtract 30/4 from 42/14
1st number: 3 0/14, 2nd number: 7 2/4
42/14 - 30/4 is -9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
42/14 = 42 × 2/14 × 2 = 84/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
30/4 = 30 × 7/4 × 7 = 210/28 - Subtract the two like fractions:
84/28 - 210/28 = 84 - 210/28 = -126/28 - After reducing the fraction, the answer is -9/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-30/4 42/14-60/4 42/28-30/4 42/14-30/8 42/14-90/4 42/14-30/12 42/70-30/4 42/14-30/20 42/98-30/4 42/14-30/28