Add 90/60 and 4/18
1st number: 1 30/60, 2nd number: 4/18
90/60 + 4/18 is 31/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
90/60 = 90 × 3/60 × 3 = 270/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
4/18 = 4 × 10/18 × 10 = 40/180 - Add the two like fractions:
270/180 + 40/180 = 270 + 40/180 = 310/180 - 310/180 simplified gives 31/18
- So, 90/60 + 4/18 = 31/18
In mixed form: 113/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+8/18 90/60+4/36 90/60+12/18 90/60+4/54 90/60+20/18 90/60+4/90 90/60+28/18