Add 40/30 and 7/45
1st number: 1 10/30, 2nd number: 7/45
40/30 + 7/45 is 67/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Add the two like fractions:
120/90 + 14/90 = 120 + 14/90 = 134/90 - 134/90 simplified gives 67/45
- So, 40/30 + 7/45 = 67/45
In mixed form: 122/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+7/45 40/30+14/45 40/60+7/45 40/30+7/90 40/30+21/45 40/90+7/45 40/30+35/45 40/30+49/45