Add 30/16 and 20/40
1st number: 1 14/16, 2nd number: 20/40
30/16 + 20/40 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
30/16 = 30 × 5/16 × 5 = 150/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
20/40 = 20 × 2/40 × 2 = 40/80 - Add the two like fractions:
150/80 + 40/80 = 150 + 40/80 = 190/80 - 190/80 simplified gives 19/8
- So, 30/16 + 20/40 = 19/8
In mixed form: 23/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/16+20/40 30/32+20/40 30/16+20/80 90/16+20/40 30/16+60/40 30/48+20/40 30/80+20/40