Add 4/54 and 12/90
4/54 + 12/90 is 28/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
4/54 = 4 × 5/54 × 5 = 20/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
12/90 = 12 × 3/90 × 3 = 36/270 - Add the two like fractions:
20/270 + 36/270 = 20 + 36/270 = 56/270 - 56/270 simplified gives 28/135
- So, 4/54 + 12/90 = 28/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/54+12/90 4/54+24/90 12/54+12/90 4/54+36/90 20/54+12/90 4/54+60/90 28/54+12/90 4/54+84/90