Add 40/45 and 4/40
40/45 + 4/40 is 89/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
40/45 = 40 × 8/45 × 8 = 320/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
4/40 = 4 × 9/40 × 9 = 36/360 - Add the two like fractions:
320/360 + 36/360 = 320 + 36/360 = 356/360 - 356/360 simplified gives 89/90
- So, 40/45 + 4/40 = 89/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45+4/40 40/45+8/40 40/90+4/40 40/45+4/80 40/45+12/40 40/45+20/40 40/45+28/40