Subtract 84/48 from 30/20
1st number: 1 10/20, 2nd number: 1 36/48
30/20 - 84/48 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
30/20 = 30 × 12/20 × 12 = 360/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
84/48 = 84 × 5/48 × 5 = 420/240 - Subtract the two like fractions:
360/240 - 420/240 = 360 - 420/240 = -60/240 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-84/48 30/40-84/48 30/20-84/96 90/20-84/48 30/60-84/48