Add 21/30 and 16/60
21/30 + 16/60 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
21/30 = 21 × 2/30 × 2 = 42/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
16/60 = 16 × 1/60 × 1 = 16/60 - Add the two like fractions:
42/60 + 16/60 = 42 + 16/60 = 58/60 - 58/60 simplified gives 29/30
- So, 21/30 + 16/60 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+16/60 21/30+32/60 21/60+16/60 63/30+16/60 21/30+48/60 21/90+16/60 21/30+80/60