Add 35/45 and 25/42
35/45 + 25/42 is 173/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
35/45 = 35 × 14/45 × 14 = 490/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
25/42 = 25 × 15/42 × 15 = 375/630 - Add the two like fractions:
490/630 + 375/630 = 490 + 375/630 = 865/630 - 865/630 simplified gives 173/126
- So, 35/45 + 25/42 = 173/126
In mixed form: 147/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45+25/42 35/45+50/42 35/90+25/42 35/45+25/84 35/45+75/42