Add 20/4 and 54/72
1st number: 5 0/4, 2nd number: 54/72
20/4 + 54/72 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
20/4 = 20 × 18/4 × 18 = 360/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
54/72 = 54 × 1/72 × 1 = 54/72 - Add the two like fractions:
360/72 + 54/72 = 360 + 54/72 = 414/72 - 414/72 simplified gives 23/4
- So, 20/4 + 54/72 = 23/4
In mixed form: 53/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+54/72 20/8+54/72 60/4+54/72 20/12+54/72 20/28+54/72