Add 30/45 and 10/72
30/45 + 10/72 is 29/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
30/45 = 30 × 8/45 × 8 = 240/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
10/72 = 10 × 5/72 × 5 = 50/360 - Add the two like fractions:
240/360 + 50/360 = 240 + 50/360 = 290/360 - 290/360 simplified gives 29/36
- So, 30/45 + 10/72 = 29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45+10/72 30/45+20/72 30/90+10/72 90/45+10/72 30/45+30/72 30/45+50/72 30/45+70/72