Add 2/45 and 42/90
2/45 + 42/90 is 23/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
2/45 = 2 × 2/45 × 2 = 4/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
4/90 + 42/90 = 4 + 42/90 = 46/90 - 46/90 simplified gives 23/45
- So, 2/45 + 42/90 = 23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45+42/90 2/45+84/90 2/90+42/90 6/45+42/90 10/45+42/90 14/45+42/90