Add 72/4 and 45/80
1st number: 18 0/4, 2nd number: 45/80
72/4 + 45/80 is 297/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
72/4 = 72 × 20/4 × 20 = 1440/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
45/80 = 45 × 1/80 × 1 = 45/80 - Add the two like fractions:
1440/80 + 45/80 = 1440 + 45/80 = 1485/80 - 1485/80 simplified gives 297/16
- So, 72/4 + 45/80 = 297/16
In mixed form: 189/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+90/80 72/8+45/80 72/12+45/80 72/20+45/80 72/28+45/80