Add 42/25 and 8/80
1st number: 1 17/25, 2nd number: 8/80
42/25 + 8/80 is 89/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
42/25 = 42 × 16/25 × 16 = 672/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
8/80 = 8 × 5/80 × 5 = 40/400 - Add the two like fractions:
672/400 + 40/400 = 672 + 40/400 = 712/400 - 712/400 simplified gives 89/50
- So, 42/25 + 8/80 = 89/50
In mixed form: 139/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25+8/80 42/25+16/80 42/50+8/80 42/25+24/80 42/75+8/80 42/25+40/80 42/25+56/80