Add 10/45 and 30/4
1st number: 10/45, 2nd number: 7 2/4
10/45 + 30/4 is 139/18.
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,
10/45 = 10 × 4/45 × 4 = 40/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
30/4 = 30 × 45/4 × 45 = 1350/180 - Add the two like fractions:
40/180 + 1350/180 = 40 + 1350/180 = 1390/180 - 1390/180 simplified gives 139/18
- So, 10/45 + 30/4 = 139/18
In mixed form: 713/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45+30/4 10/45+60/4 10/90+30/4 10/45+30/8 30/45+30/4 10/45+90/4 10/45+30/12 50/45+30/4 10/45+30/20 70/45+30/4 10/45+30/28