Add 42/30 and 63/7
1st number: 1 12/30, 2nd number: 9 0/7
42/30 + 63/7 is 52/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
63/7 = 63 × 30/7 × 30 = 1890/210 - Add the two like fractions:
294/210 + 1890/210 = 294 + 1890/210 = 2184/210 - 2184/210 simplified gives 52/5
- So, 42/30 + 63/7 = 52/5
In mixed form: 102/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+63/7 42/60+63/7 42/30+63/14 42/90+63/7 42/30+63/21 42/30+63/35 42/30+63/49