Add 42/9 and 10/7
1st number: 4 6/9, 2nd number: 1 3/7
42/9 + 10/7 is 128/21.
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,
10/7 = 10 × 9/7 × 9 = 90/63 - Add the two like fractions:
294/63 + 90/63 = 294 + 90/63 = 384/63 - 384/63 simplified gives 128/21
- So, 42/9 + 10/7 = 128/21
In mixed form: 62/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+10/7 42/9+20/7 42/18+10/7 42/9+10/14 42/9+30/7 42/27+10/7 42/9+10/21 42/9+50/7 42/45+10/7 42/9+10/35 42/9+70/7 42/63+10/7 42/9+10/49