Add 72/16 and 2/5
1st number: 4 8/16, 2nd number: 2/5
72/16 + 2/5 is 49/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
72/16 = 72 × 5/16 × 5 = 360/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
2/5 = 2 × 16/5 × 16 = 32/80 - Add the two like fractions:
360/80 + 32/80 = 360 + 32/80 = 392/80 - 392/80 simplified gives 49/10
- So, 72/16 + 2/5 = 49/10
In mixed form: 49/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/16+4/5 72/32+2/5 72/16+2/10 72/16+6/5 72/48+2/5 72/16+2/15 72/16+10/5 72/80+2/5 72/16+2/25 72/16+14/5 72/16+2/35