Add 40/30 and 70/28
1st number: 1 10/30, 2nd number: 2 14/28
40/30 + 70/28 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
40/30 = 40 × 14/30 × 14 = 560/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
70/28 = 70 × 15/28 × 15 = 1050/420 - Add the two like fractions:
560/420 + 1050/420 = 560 + 1050/420 = 1610/420 - 1610/420 simplified gives 23/6
- So, 40/30 + 70/28 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+70/28 40/60+70/28 40/30+70/56 40/90+70/28 40/30+70/84