Add 40/28 and 1/30
1st number: 1 12/28, 2nd number: 1/30
40/28 + 1/30 is 307/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
40/28 = 40 × 15/28 × 15 = 600/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
1/30 = 1 × 14/30 × 14 = 14/420 - Add the two like fractions:
600/420 + 14/420 = 600 + 14/420 = 614/420 - 614/420 simplified gives 307/210
- So, 40/28 + 1/30 = 307/210
In mixed form: 197/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+1/30 40/28+2/30 40/56+1/30 40/28+1/60 40/28+3/30 40/84+1/30 40/28+1/90 40/28+5/30 40/28+7/30