Add 18/12 and 40/64
1st number: 1 6/12, 2nd number: 40/64
18/12 + 40/64 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 64 is 192
Next, find the equivalent fraction of both fractional numbers with denominator 192 - For the 1st fraction, since 12 × 16 = 192,
18/12 = 18 × 16/12 × 16 = 288/192 - Likewise, for the 2nd fraction, since 64 × 3 = 192,
40/64 = 40 × 3/64 × 3 = 120/192 - Add the two like fractions:
288/192 + 120/192 = 288 + 120/192 = 408/192 - 408/192 simplified gives 17/8
- So, 18/12 + 40/64 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+40/64 18/12+80/64 18/24+40/64 54/12+40/64 18/36+40/64 90/12+40/64 18/60+40/64 18/84+40/64