Add 25/42 and 30/45
25/42 + 30/45 is 53/42.
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,
25/42 = 25 × 15/42 × 15 = 375/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
30/45 = 30 × 14/45 × 14 = 420/630 - Add the two like fractions:
375/630 + 420/630 = 375 + 420/630 = 795/630 - 795/630 simplified gives 53/42
- So, 25/42 + 30/45 = 53/42
In mixed form: 111/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+30/45 25/42+60/45 25/84+30/45 25/42+30/90 75/42+30/45 25/42+90/45