Subtract 42/4 from 8/30
1st number: 8/30, 2nd number: 10 2/4
8/30 - 42/4 is -307/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
8/30 = 8 × 2/30 × 2 = 16/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
42/4 = 42 × 15/4 × 15 = 630/60 - Subtract the two like fractions:
16/60 - 630/60 = 16 - 630/60 = -614/60 - After reducing the fraction, the answer is -307/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30-42/4 8/30-84/4 8/60-42/4 8/30-42/8 24/30-42/4 8/90-42/4 8/30-42/12 40/30-42/4 8/30-42/20 56/30-42/4 8/30-42/28