Add 30/28 and 1/45
1st number: 1 2/28, 2nd number: 1/45
30/28 + 1/45 is 689/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
30/28 = 30 × 45/28 × 45 = 1350/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
1/45 = 1 × 28/45 × 28 = 28/1260 - Add the two like fractions:
1350/1260 + 28/1260 = 1350 + 28/1260 = 1378/1260 - 1378/1260 simplified gives 689/630
- So, 30/28 + 1/45 = 689/630
In mixed form: 159/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+1/45 30/28+2/45 30/56+1/45 30/28+1/90 90/28+1/45 30/28+3/45 30/84+1/45 30/28+5/45 30/28+7/45