Add 54/75 and 40/20
1st number: 54/75, 2nd number: 2 0/20
54/75 + 40/20 is 68/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
54/75 = 54 × 4/75 × 4 = 216/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
40/20 = 40 × 15/20 × 15 = 600/300 - Add the two like fractions:
216/300 + 600/300 = 216 + 600/300 = 816/300 - 816/300 simplified gives 68/25
- So, 54/75 + 40/20 = 68/25
In mixed form: 218/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75+80/20 54/75+40/60