Subtract 36/28 from 10/30
1st number: 10/30, 2nd number: 1 8/28
10/30 - 36/28 is -20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
10/30 = 10 × 14/30 × 14 = 140/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
36/28 = 36 × 15/28 × 15 = 540/420 - Subtract the two like fractions:
140/420 - 540/420 = 140 - 540/420 = -400/420 - After reducing the fraction, the answer is -20/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30-36/28 10/30-72/28 10/60-36/28 10/30-36/56 10/90-36/28 10/30-36/84 50/30-36/28 70/30-36/28