Add 4/90 and 18/15
1st number: 4/90, 2nd number: 1 3/15
4/90 + 18/15 is 56/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
18/15 = 18 × 6/15 × 6 = 108/90 - Add the two like fractions:
4/90 + 108/90 = 4 + 108/90 = 112/90 - 112/90 simplified gives 56/45
- So, 4/90 + 18/15 = 56/45
In mixed form: 111/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90+18/15 4/90+36/15 4/90+18/30 12/90+18/15 4/90+54/15 4/90+18/45 20/90+18/15 4/90+90/15 4/90+18/75 28/90+18/15