Add 28/7 and 54/30
1st number: 4 0/7, 2nd number: 1 24/30
28/7 + 54/30 is 29/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
28/7 = 28 × 30/7 × 30 = 840/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
54/30 = 54 × 7/30 × 7 = 378/210 - Add the two like fractions:
840/210 + 378/210 = 840 + 378/210 = 1218/210 - 1218/210 simplified gives 29/5
- So, 28/7 + 54/30 = 29/5
In mixed form: 54/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+54/30 28/14+54/30 28/7+54/60 84/7+54/30 28/21+54/30 28/7+54/90 28/35+54/30 28/49+54/30