Add 42/8 and 72/25
1st number: 5 2/8, 2nd number: 2 22/25
42/8 + 72/25 is 813/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
42/8 = 42 × 25/8 × 25 = 1050/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
72/25 = 72 × 8/25 × 8 = 576/200 - Add the two like fractions:
1050/200 + 576/200 = 1050 + 576/200 = 1626/200 - 1626/200 simplified gives 813/100
- So, 42/8 + 72/25 = 813/100
In mixed form: 813/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+72/25 42/16+72/25 42/8+72/50 42/24+72/25 42/8+72/75 42/40+72/25 42/56+72/25