Add 40/4 and 90/7
1st number: 10 0/4, 2nd number: 12 6/7
40/4 + 90/7 is 160/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
40/4 = 40 × 7/4 × 7 = 280/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
90/7 = 90 × 4/7 × 4 = 360/28 - Add the two like fractions:
280/28 + 360/28 = 280 + 360/28 = 640/28 - 640/28 simplified gives 160/7
- So, 40/4 + 90/7 = 160/7
In mixed form: 226/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4+90/7 40/8+90/7 40/4+90/14 40/12+90/7 40/4+90/21 40/20+90/7 40/4+90/35 40/28+90/7 40/4+90/49