Add 4/54 and 42/90
4/54 + 42/90 is 73/135.
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,
42/90 = 42 × 3/90 × 3 = 126/270 - Add the two like fractions:
20/270 + 126/270 = 20 + 126/270 = 146/270 - 146/270 simplified gives 73/135
- So, 4/54 + 42/90 = 73/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/54+42/90 4/54+84/90 12/54+42/90 20/54+42/90 28/54+42/90