Add 84/40 and 12/56
1st number: 2 4/40, 2nd number: 12/56
84/40 + 12/56 is 81/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
12/56 = 12 × 5/56 × 5 = 60/280 - Add the two like fractions:
588/280 + 60/280 = 588 + 60/280 = 648/280 - 648/280 simplified gives 81/35
- So, 84/40 + 12/56 = 81/35
In mixed form: 211/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+24/56 84/80+12/56 84/40+36/56 84/40+60/56 84/40+84/56