Add 20/6 and 72/7
1st number: 3 2/6, 2nd number: 10 2/7
20/6 + 72/7 is 286/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
20/6 = 20 × 7/6 × 7 = 140/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
72/7 = 72 × 6/7 × 6 = 432/42 - Add the two like fractions:
140/42 + 432/42 = 140 + 432/42 = 572/42 - 572/42 simplified gives 286/21
- So, 20/6 + 72/7 = 286/21
In mixed form: 1313/21
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