Add 12/5 and 90/56
1st number: 2 2/5, 2nd number: 1 34/56
12/5 + 90/56 is 561/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
12/5 = 12 × 56/5 × 56 = 672/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Add the two like fractions:
672/280 + 450/280 = 672 + 450/280 = 1122/280 - 1122/280 simplified gives 561/140
- So, 12/5 + 90/56 = 561/140
In mixed form: 41/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+90/56 12/10+90/56 36/5+90/56 12/15+90/56 60/5+90/56 12/25+90/56 84/5+90/56 12/35+90/56