Add 90/56 and 40/12
1st number: 1 34/56, 2nd number: 3 4/12
90/56 + 40/12 is 415/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
90/56 = 90 × 3/56 × 3 = 270/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
40/12 = 40 × 14/12 × 14 = 560/168 - Add the two like fractions:
270/168 + 560/168 = 270 + 560/168 = 830/168 - 830/168 simplified gives 415/84
- So, 90/56 + 40/12 = 415/84
In mixed form: 479/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+80/12 90/56+40/24 90/56+40/36 90/56+40/60 90/56+40/84