Add 20/48 and 45/54
20/48 + 45/54 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 54 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 48 × 9 = 432,
20/48 = 20 × 9/48 × 9 = 180/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
45/54 = 45 × 8/54 × 8 = 360/432 - Add the two like fractions:
180/432 + 360/432 = 180 + 360/432 = 540/432 - 540/432 simplified gives 5/4
- So, 20/48 + 45/54 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/48+45/54 20/48+90/54 20/96+45/54 60/48+45/54