Add 20/90 and 70/35
1st number: 20/90, 2nd number: 2 0/35
20/90 + 70/35 is 20/9.
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,
20/90 = 20 × 7/90 × 7 = 140/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
70/35 = 70 × 18/35 × 18 = 1260/630 - Add the two like fractions:
140/630 + 1260/630 = 140 + 1260/630 = 1400/630 - 1400/630 simplified gives 20/9
- So, 20/90 + 70/35 = 20/9
In mixed form: 22/9
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