Add 54/84 and 15/60
54/84 + 15/60 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
54/84 = 54 × 5/84 × 5 = 270/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
15/60 = 15 × 7/60 × 7 = 105/420 - Add the two like fractions:
270/420 + 105/420 = 270 + 105/420 = 375/420 - 375/420 simplified gives 25/28
- So, 54/84 + 15/60 = 25/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+30/60 54/84+45/60 54/84+75/60