Add 16/42 and 4/15
16/42 + 4/15 is 68/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
16/42 = 16 × 5/42 × 5 = 80/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
4/15 = 4 × 14/15 × 14 = 56/210 - Add the two like fractions:
80/210 + 56/210 = 80 + 56/210 = 136/210 - 136/210 simplified gives 68/105
- So, 16/42 + 4/15 = 68/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+4/15 16/42+8/15 16/84+4/15 16/42+4/30 48/42+4/15 16/42+12/15 16/42+4/45 80/42+4/15 16/42+20/15 16/42+4/75 16/42+28/15