Add 12/45 and 30/4
1st number: 12/45, 2nd number: 7 2/4
12/45 + 30/4 is 233/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
12/45 = 12 × 4/45 × 4 = 48/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
30/4 = 30 × 45/4 × 45 = 1350/180 - Add the two like fractions:
48/180 + 1350/180 = 48 + 1350/180 = 1398/180 - 1398/180 simplified gives 233/30
- So, 12/45 + 30/4 = 233/30
In mixed form: 723/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+30/4 12/45+60/4 12/90+30/4 12/45+30/8 36/45+30/4 12/45+90/4 12/45+30/12 60/45+30/4 12/45+30/20 84/45+30/4 12/45+30/28