Add 16/20 and 10/42
16/20 + 10/42 is 109/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
16/20 = 16 × 21/20 × 21 = 336/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
10/42 = 10 × 10/42 × 10 = 100/420 - Add the two like fractions:
336/420 + 100/420 = 336 + 100/420 = 436/420 - 436/420 simplified gives 109/105
- So, 16/20 + 10/42 = 109/105
In mixed form: 14/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+10/42 16/20+20/42 16/40+10/42 16/20+10/84 48/20+10/42 16/20+30/42 16/60+10/42 80/20+10/42 16/20+50/42 16/20+70/42