Add 32/42 and 18/45
32/42 + 18/45 is 122/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
32/42 = 32 × 15/42 × 15 = 480/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Add the two like fractions:
480/630 + 252/630 = 480 + 252/630 = 732/630 - 732/630 simplified gives 122/105
- So, 32/42 + 18/45 = 122/105
In mixed form: 117/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/42+18/45 32/42+36/45 32/84+18/45 32/42+18/90 96/42+18/45 32/42+54/45 32/42+90/45