Add 7/45 and 6/42
7/45 + 6/42 is 94/315.
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,
6/42 = 6 × 15/42 × 15 = 90/630 - Add the two like fractions:
98/630 + 90/630 = 98 + 90/630 = 188/630 - 188/630 simplified gives 94/315
- So, 7/45 + 6/42 = 94/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+6/42 7/45+12/42 7/90+6/42 7/45+6/84 21/45+6/42 7/45+18/42 35/45+6/42 7/45+30/42 49/45+6/42