Add 70/18 and 90/40
1st number: 3 16/18, 2nd number: 2 10/40
70/18 + 90/40 is 221/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
70/18 = 70 × 20/18 × 20 = 1400/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
1400/360 + 810/360 = 1400 + 810/360 = 2210/360 - 2210/360 simplified gives 221/36
- So, 70/18 + 90/40 = 221/36
In mixed form: 65/36
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