Add 4/2 and 21/90
1st number: 2 0/2, 2nd number: 21/90
4/2 + 21/90 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
4/2 = 4 × 45/2 × 45 = 180/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
180/90 + 21/90 = 180 + 21/90 = 201/90 - 201/90 simplified gives 67/30
- So, 4/2 + 21/90 = 67/30
In mixed form: 27/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2+21/90 4/2+42/90 12/2+21/90 4/2+63/90 4/6+21/90 20/2+21/90 4/10+21/90 28/2+21/90 4/14+21/90