Add 81/14 and 25/30, Solve 5 11/14 + 25/30 as a fraction

Add 81/14 and 25/30

1^st number: 5 11/14, 2^nd number: 25/30

81/14 + 25/30 is 139/21.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 14 × 15 = 210,
81/14 = 81 × 15/14 × 15 = 1215/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
25/30 = 25 × 7/30 × 7 = 175/210
Add the two like fractions:
1215/210 + 175/210 = 1215 + 175/210 = 1390/210
1390/210 simplified gives 139/21
So, 81/14 + 25/30 = 139/21
In mixed form: 613/21

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