Add 81/15 and 42/14
1st number: 5 6/15, 2nd number: 3 0/14
81/15 + 42/14 is 42/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
81/15 = 81 × 14/15 × 14 = 1134/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
42/14 = 42 × 15/14 × 15 = 630/210 - Add the two like fractions:
1134/210 + 630/210 = 1134 + 630/210 = 1764/210 - 1764/210 simplified gives 42/5
- So, 81/15 + 42/14 = 42/5
In mixed form: 82/5
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