Add 63/42 and 10/30
1st number: 1 21/42, 2nd number: 10/30
63/42 + 10/30 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
10/30 = 10 × 7/30 × 7 = 70/210 - Add the two like fractions:
315/210 + 70/210 = 315 + 70/210 = 385/210 - 385/210 simplified gives 11/6
- So, 63/42 + 10/30 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+20/30 63/84+10/30 63/42+10/60 63/42+10/90 63/42+50/30 63/42+70/30