Add 1/42 and 48/45
1st number: 1/42, 2nd number: 1 3/45
1/42 + 48/45 is 229/210.
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,
1/42 = 1 × 15/42 × 15 = 15/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
48/45 = 48 × 14/45 × 14 = 672/630 - Add the two like fractions:
15/630 + 672/630 = 15 + 672/630 = 687/630 - 687/630 simplified gives 229/210
- So, 1/42 + 48/45 = 229/210
In mixed form: 119/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+48/45 1/42+96/45 1/84+48/45 1/42+48/90 3/42+48/45 5/42+48/45 7/42+48/45