Add 42/90 and 3/27
42/90 + 3/27 is 26/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
42/90 = 42 × 3/90 × 3 = 126/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
3/27 = 3 × 10/27 × 10 = 30/270 - Add the two like fractions:
126/270 + 30/270 = 126 + 30/270 = 156/270 - 156/270 simplified gives 26/45
- So, 42/90 + 3/27 = 26/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+3/27 42/90+6/27 42/90+3/54 42/90+9/27 42/90+3/81 42/90+15/27 42/90+21/27