Add 14/21 and 81/80
1st number: 14/21, 2nd number: 1 1/80
14/21 + 81/80 is 403/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
14/21 = 14 × 80/21 × 80 = 1120/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
81/80 = 81 × 21/80 × 21 = 1701/1680 - Add the two like fractions:
1120/1680 + 1701/1680 = 1120 + 1701/1680 = 2821/1680 - 2821/1680 simplified gives 403/240
- So, 14/21 + 81/80 = 403/240
In mixed form: 1163/240
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