Add 16/20 and 30/42
16/20 + 30/42 is 53/35.
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,
30/42 = 30 × 10/42 × 10 = 300/420 - Add the two like fractions:
336/420 + 300/420 = 336 + 300/420 = 636/420 - 636/420 simplified gives 53/35
- So, 16/20 + 30/42 = 53/35
In mixed form: 118/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+30/42 16/20+60/42 16/40+30/42 16/20+30/84 48/20+30/42 16/20+90/42 16/60+30/42 80/20+30/42