Add 72/16 and 18/45
1st number: 4 8/16, 2nd number: 18/45
72/16 + 18/45 is 49/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
72/16 = 72 × 45/16 × 45 = 3240/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
18/45 = 18 × 16/45 × 16 = 288/720 - Add the two like fractions:
3240/720 + 288/720 = 3240 + 288/720 = 3528/720 - 3528/720 simplified gives 49/10
- So, 72/16 + 18/45 = 49/10
In mixed form: 49/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/16+36/45 72/32+18/45 72/16+18/90 72/16+54/45 72/48+18/45 72/16+90/45 72/80+18/45