Add 42/9 and 75/7
1st number: 4 6/9, 2nd number: 10 5/7
42/9 + 75/7 is 323/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
42/9 = 42 × 7/9 × 7 = 294/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
75/7 = 75 × 9/7 × 9 = 675/63 - Add the two like fractions:
294/63 + 675/63 = 294 + 675/63 = 969/63 - 969/63 simplified gives 323/21
- So, 42/9 + 75/7 = 323/21
In mixed form: 158/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+75/7 42/18+75/7 42/9+75/14 42/27+75/7 42/9+75/21 42/45+75/7 42/9+75/35 42/63+75/7 42/9+75/49