Add 72/4 and 18/45
1st number: 18 0/4, 2nd number: 18/45
72/4 + 18/45 is 92/5.
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,
18/45 = 18 × 4/45 × 4 = 72/180 - Add the two like fractions:
3240/180 + 72/180 = 3240 + 72/180 = 3312/180 - 3312/180 simplified gives 92/5
- So, 72/4 + 18/45 = 92/5
In mixed form: 182/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+36/45 72/8+18/45 72/4+18/90 72/4+54/45 72/12+18/45 72/4+90/45 72/20+18/45 72/28+18/45