Add 18/90 and 84/70
1st number: 18/90, 2nd number: 1 14/70
18/90 + 84/70 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Add the two like fractions:
126/630 + 756/630 = 126 + 756/630 = 882/630 - 882/630 simplified gives 7/5
- So, 18/90 + 84/70 = 7/5
In mixed form: 12/5
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