Add 42/7 and 30/63
1st number: 6 0/7, 2nd number: 30/63
42/7 + 30/63 is 136/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
42/7 = 42 × 9/7 × 9 = 378/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
30/63 = 30 × 1/63 × 1 = 30/63 - Add the two like fractions:
378/63 + 30/63 = 378 + 30/63 = 408/63 - 408/63 simplified gives 136/21
- So, 42/7 + 30/63 = 136/21
In mixed form: 610/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+30/63 42/7+60/63 42/14+30/63 42/7+90/63 42/21+30/63 42/35+30/63 42/49+30/63