Add 18/2 and 90/70
1st number: 9 0/2, 2nd number: 1 20/70
18/2 + 90/70 is 72/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
18/2 = 18 × 35/2 × 35 = 630/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Add the two like fractions:
630/70 + 90/70 = 630 + 90/70 = 720/70 - 720/70 simplified gives 72/7
- So, 18/2 + 90/70 = 72/7
In mixed form: 102/7
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