Add 20/10 and 72/7
1st number: 2 0/10, 2nd number: 10 2/7
20/10 + 72/7 is 86/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
20/10 = 20 × 7/10 × 7 = 140/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
72/7 = 72 × 10/7 × 10 = 720/70 - Add the two like fractions:
140/70 + 720/70 = 140 + 720/70 = 860/70 - 860/70 simplified gives 86/7
- So, 20/10 + 72/7 = 86/7
In mixed form: 122/7
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