Add 54/75 and 4/90
54/75 + 4/90 is 172/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
54/75 = 54 × 6/75 × 6 = 324/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
4/90 = 4 × 5/90 × 5 = 20/450 - Add the two like fractions:
324/450 + 20/450 = 324 + 20/450 = 344/450 - 344/450 simplified gives 172/225
- So, 54/75 + 4/90 = 172/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75+8/90 54/75+12/90 54/75+20/90 54/75+28/90