Add 70/90 and 40/5
1st number: 70/90, 2nd number: 8 0/5
70/90 + 40/5 is 79/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 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 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Add the two like fractions:
70/90 + 720/90 = 70 + 720/90 = 790/90 - 790/90 simplified gives 79/9
- So, 70/90 + 40/5 = 79/9
In mixed form: 87/9
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