Add 54/21 and 1/30
1st number: 2 12/21, 2nd number: 1/30
54/21 + 1/30 is 547/210.
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,
54/21 = 54 × 10/21 × 10 = 540/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
1/30 = 1 × 7/30 × 7 = 7/210 - Add the two like fractions:
540/210 + 7/210 = 540 + 7/210 = 547/210 - So, 54/21 + 1/30 = 547/210
In mixed form: 2127/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+2/30 54/42+1/30 54/21+1/60 54/21+3/30 54/63+1/30 54/21+1/90 54/21+5/30 54/21+7/30