Add 70/15 and 40/18
1st number: 4 10/15, 2nd number: 2 4/18
70/15 + 40/18 is 62/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
70/15 = 70 × 6/15 × 6 = 420/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Add the two like fractions:
420/90 + 200/90 = 420 + 200/90 = 620/90 - 620/90 simplified gives 62/9
- So, 70/15 + 40/18 = 62/9
In mixed form: 68/9
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