Add 12/15 and 2/42
12/15 + 2/42 is 89/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
12/15 = 12 × 14/15 × 14 = 168/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
2/42 = 2 × 5/42 × 5 = 10/210 - Add the two like fractions:
168/210 + 10/210 = 168 + 10/210 = 178/210 - 178/210 simplified gives 89/105
- So, 12/15 + 2/42 = 89/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+2/42 12/15+4/42 12/30+2/42 12/15+2/84 36/15+2/42 12/15+6/42 12/45+2/42 60/15+2/42 12/15+10/42 12/75+2/42 84/15+2/42 12/15+14/42