Add 20/7 and 70/9
1st number: 2 6/7, 2nd number: 7 7/9
20/7 + 70/9 is 670/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
20/7 = 20 × 9/7 × 9 = 180/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63 - Add the two like fractions:
180/63 + 490/63 = 180 + 490/63 = 670/63 - So, 20/7 + 70/9 = 670/63
In mixed form: 1040/63
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