Add 30/20 and 81/14
1st number: 1 10/20, 2nd number: 5 11/14
30/20 + 81/14 is 51/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
30/20 = 30 × 7/20 × 7 = 210/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
81/14 = 81 × 10/14 × 10 = 810/140 - Add the two like fractions:
210/140 + 810/140 = 210 + 810/140 = 1020/140 - 1020/140 simplified gives 51/7
- So, 30/20 + 81/14 = 51/7
In mixed form: 72/7
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