Add 30/28 and 12/63
1st number: 1 2/28, 2nd number: 12/63
30/28 + 12/63 is 53/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
12/63 = 12 × 4/63 × 4 = 48/252 - Add the two like fractions:
270/252 + 48/252 = 270 + 48/252 = 318/252 - 318/252 simplified gives 53/42
- So, 30/28 + 12/63 = 53/42
In mixed form: 111/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+12/63 30/28+24/63 30/56+12/63 90/28+12/63 30/28+36/63 30/84+12/63 30/28+60/63 30/28+84/63