Add 90/5 and 20/70
1st number: 18 0/5, 2nd number: 20/70
90/5 + 20/70 is 128/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
90/5 = 90 × 14/5 × 14 = 1260/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
20/70 = 20 × 1/70 × 1 = 20/70 - Add the two like fractions:
1260/70 + 20/70 = 1260 + 20/70 = 1280/70 - 1280/70 simplified gives 128/7
- So, 90/5 + 20/70 = 128/7
In mixed form: 182/7
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