Add 7/45 and 25/42
7/45 + 25/42 is 473/630.
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,
7/45 = 7 × 14/45 × 14 = 98/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
25/42 = 25 × 15/42 × 15 = 375/630 - Add the two like fractions:
98/630 + 375/630 = 98 + 375/630 = 473/630 - So, 7/45 + 25/42 = 473/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+25/42 7/45+50/42 7/90+25/42 7/45+25/84 21/45+25/42 7/45+75/42 35/45+25/42 49/45+25/42