Add 72/4 and 1/45
1st number: 18 0/4, 2nd number: 1/45
72/4 + 1/45 is 811/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
72/4 = 72 × 45/4 × 45 = 3240/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Add the two like fractions:
3240/180 + 4/180 = 3240 + 4/180 = 3244/180 - 3244/180 simplified gives 811/45
- So, 72/4 + 1/45 = 811/45
In mixed form: 181/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+2/45 72/8+1/45 72/4+1/90 72/4+3/45 72/12+1/45 72/4+5/45 72/20+1/45 72/4+7/45 72/28+1/45