Add 40/90 and 54/8
1st number: 40/90, 2nd number: 6 6/8
40/90 + 54/8 is 259/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
40/90 = 40 × 4/90 × 4 = 160/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
54/8 = 54 × 45/8 × 45 = 2430/360 - Add the two like fractions:
160/360 + 2430/360 = 160 + 2430/360 = 2590/360 - 2590/360 simplified gives 259/36
- So, 40/90 + 54/8 = 259/36
In mixed form: 77/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+54/8 40/90+54/16 40/90+54/24 40/90+54/40 40/90+54/56