Add 72/40 and 35/45
1st number: 1 32/40, 2nd number: 35/45
72/40 + 35/45 is 116/45.
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,
72/40 = 72 × 9/40 × 9 = 648/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
35/45 = 35 × 8/45 × 8 = 280/360 - Add the two like fractions:
648/360 + 280/360 = 648 + 280/360 = 928/360 - 928/360 simplified gives 116/45
- So, 72/40 + 35/45 = 116/45
In mixed form: 226/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+70/45 72/80+35/45 72/40+35/90