Add 8/28 and 8/15
8/28 + 8/15 is 86/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
8/28 = 8 × 15/28 × 15 = 120/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
8/15 = 8 × 28/15 × 28 = 224/420 - Add the two like fractions:
120/420 + 224/420 = 120 + 224/420 = 344/420 - 344/420 simplified gives 86/105
- So, 8/28 + 8/15 = 86/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+8/15 8/28+16/15 8/56+8/15 8/28+8/30 24/28+8/15 8/28+24/15 8/84+8/15 8/28+8/45 40/28+8/15 8/28+40/15 8/28+8/75 56/28+8/15 8/28+56/15