Add 10/20 and 81/7
1st number: 10/20, 2nd number: 11 4/7
10/20 + 81/7 is 169/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
10/20 = 10 × 7/20 × 7 = 70/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
81/7 = 81 × 20/7 × 20 = 1620/140 - Add the two like fractions:
70/140 + 1620/140 = 70 + 1620/140 = 1690/140 - 1690/140 simplified gives 169/14
- So, 10/20 + 81/7 = 169/14
In mixed form: 121/14
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