Add 7/9 and 20/70
7/9 + 20/70 is 67/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
7/9 = 7 × 70/9 × 70 = 490/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
20/70 = 20 × 9/70 × 9 = 180/630 - Add the two like fractions:
490/630 + 180/630 = 490 + 180/630 = 670/630 - 670/630 simplified gives 67/63
- So, 7/9 + 20/70 = 67/63
In mixed form: 14/63
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