Add 5/8 and 42/72
5/8 + 42/72 is 29/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
5/8 = 5 × 9/8 × 9 = 45/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
45/72 + 42/72 = 45 + 42/72 = 87/72 - 87/72 simplified gives 29/24
- So, 5/8 + 42/72 = 29/24
In mixed form: 15/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8+42/72 5/8+84/72 5/16+42/72 15/8+42/72 5/24+42/72 25/8+42/72 5/40+42/72 35/8+42/72 5/56+42/72