Add 70/90 and 80/15
1st number: 70/90, 2nd number: 5 5/15
70/90 + 80/15 is 55/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
80/15 = 80 × 6/15 × 6 = 480/90 - Add the two like fractions:
70/90 + 480/90 = 70 + 480/90 = 550/90 - 550/90 simplified gives 55/9
- So, 70/90 + 80/15 = 55/9
In mixed form: 61/9
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