Add 35/42 and 25/45
35/42 + 25/45 is 25/18.
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,
35/42 = 35 × 15/42 × 15 = 525/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
25/45 = 25 × 14/45 × 14 = 350/630 - Add the two like fractions:
525/630 + 350/630 = 525 + 350/630 = 875/630 - 875/630 simplified gives 25/18
- So, 35/42 + 25/45 = 25/18
In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+25/45 35/42+50/45 35/84+25/45 35/42+25/90 35/42+75/45