Add 10/80 and 6/15
10/80 + 6/15 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
10/80 = 10 × 3/80 × 3 = 30/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
6/15 = 6 × 16/15 × 16 = 96/240 - Add the two like fractions:
30/240 + 96/240 = 30 + 96/240 = 126/240 - 126/240 simplified gives 21/40
- So, 10/80 + 6/15 = 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+6/15 10/80+12/15 10/80+6/30 30/80+6/15 10/80+18/15 10/80+6/45 50/80+6/15 10/80+30/15 10/80+6/75 70/80+6/15 10/80+42/15