Add 30/28 and 1/63, Solve 1 2/28 + 1/63 as a fraction

Add 30/28 and 1/63

1^st number: 1 2/28, 2^nd number: 1/63

30/28 + 1/63 is 137/126.

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,
1/63 = 1 × 4/63 × 4 = 4/252
Add the two like fractions:
270/252 + 4/252 = 270 + 4/252 = 274/252
274/252 simplified gives 137/126
So, 30/28 + 1/63 = 137/126
In mixed form: 111/126

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad