Subtract 70/96 from 42/30
1st number: 1 12/30, 2nd number: 70/96
42/30 - 70/96 is 161/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 96 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
42/30 = 42 × 16/30 × 16 = 672/480 - Likewise, for the 2nd fraction, since 96 × 5 = 480,
70/96 = 70 × 5/96 × 5 = 350/480 - Subtract the two like fractions:
672/480 - 350/480 = 672 - 350/480 = 322/480 - After reducing the fraction, the answer is 161/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30-70/96 42/60-70/96 42/90-70/96