Add 45/4 and 30/72
1st number: 11 1/4, 2nd number: 30/72
45/4 + 30/72 is 35/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
45/4 = 45 × 18/4 × 18 = 810/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
30/72 = 30 × 1/72 × 1 = 30/72 - Add the two like fractions:
810/72 + 30/72 = 810 + 30/72 = 840/72 - 840/72 simplified gives 35/3
- So, 45/4 + 30/72 = 35/3
In mixed form: 112/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+30/72 45/4+60/72 45/8+30/72 45/4+90/72 45/12+30/72 45/20+30/72 45/28+30/72