Add 7/45 and 24/42
7/45 + 24/42 is 229/315.
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,
24/42 = 24 × 15/42 × 15 = 360/630 - Add the two like fractions:
98/630 + 360/630 = 98 + 360/630 = 458/630 - 458/630 simplified gives 229/315
- So, 7/45 + 24/42 = 229/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+24/42 7/45+48/42 7/90+24/42 7/45+24/84 21/45+24/42 7/45+72/42 35/45+24/42 49/45+24/42