Add 18/90 and 70/35
1st number: 18/90, 2nd number: 2 0/35
18/90 + 70/35 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 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 35 × 18 = 630,
70/35 = 70 × 18/35 × 18 = 1260/630 - Add the two like fractions:
126/630 + 1260/630 = 126 + 1260/630 = 1386/630 - 1386/630 simplified gives 11/5
- So, 18/90 + 70/35 = 11/5
In mixed form: 21/5
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