Add 20/60 and 81/7
1st number: 20/60, 2nd number: 11 4/7
20/60 + 81/7 is 250/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
81/7 = 81 × 60/7 × 60 = 4860/420 - Add the two like fractions:
140/420 + 4860/420 = 140 + 4860/420 = 5000/420 - 5000/420 simplified gives 250/21
- So, 20/60 + 81/7 = 250/21
In mixed form: 1119/21
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