Add 30/4 and 30/90
1st number: 7 2/4, 2nd number: 30/90
30/4 + 30/90 is 47/6.
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,
30/90 = 30 × 2/90 × 2 = 60/180 - Add the two like fractions:
1350/180 + 60/180 = 1350 + 60/180 = 1410/180 - 1410/180 simplified gives 47/6
- So, 30/4 + 30/90 = 47/6
In mixed form: 75/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+30/90 30/4+60/90 30/8+30/90 90/4+30/90 30/12+30/90 30/20+30/90 30/28+30/90