Add 16/42 and 40/84
16/42 + 40/84 is 6/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
16/42 = 16 × 2/42 × 2 = 32/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
40/84 = 40 × 1/84 × 1 = 40/84 - Add the two like fractions:
32/84 + 40/84 = 32 + 40/84 = 72/84 - 72/84 simplified gives 6/7
- So, 16/42 + 40/84 = 6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+40/84 16/42+80/84 16/84+40/84 48/42+40/84 80/42+40/84