Add 12/40 and 16/45
12/40 + 16/45 is 59/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
12/40 = 12 × 9/40 × 9 = 108/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
16/45 = 16 × 8/45 × 8 = 128/360 - Add the two like fractions:
108/360 + 128/360 = 108 + 128/360 = 236/360 - 236/360 simplified gives 59/90
- So, 12/40 + 16/45 = 59/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+16/45 12/40+32/45 12/80+16/45 12/40+16/90 36/40+16/45 12/40+48/45 60/40+16/45 12/40+80/45 84/40+16/45