Add 30/4 and 1/90
1st number: 7 2/4, 2nd number: 1/90
30/4 + 1/90 is 338/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
30/4 = 30 × 45/4 × 45 = 1350/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Add the two like fractions:
1350/180 + 2/180 = 1350 + 2/180 = 1352/180 - 1352/180 simplified gives 338/45
- So, 30/4 + 1/90 = 338/45
In mixed form: 723/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+1/90 30/4+2/90 30/8+1/90 90/4+1/90 30/4+3/90 30/12+1/90 30/4+5/90 30/20+1/90 30/4+7/90 30/28+1/90