Add 63/21 and 2/30
1st number: 3 0/21, 2nd number: 2/30
63/21 + 2/30 is 46/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
63/21 = 63 × 10/21 × 10 = 630/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
2/30 = 2 × 7/30 × 7 = 14/210 - Add the two like fractions:
630/210 + 14/210 = 630 + 14/210 = 644/210 - 644/210 simplified gives 46/15
- So, 63/21 + 2/30 = 46/15
In mixed form: 31/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/21+4/30 63/42+2/30 63/21+2/60 63/21+6/30 63/21+2/90 63/21+10/30 63/21+14/30