Add 21/14 and 9/8
1st number: 1 7/14, 2nd number: 1 1/8
21/14 + 9/8 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
21/14 = 21 × 4/14 × 4 = 84/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
9/8 = 9 × 7/8 × 7 = 63/56 - Add the two like fractions:
84/56 + 63/56 = 84 + 63/56 = 147/56 - 147/56 simplified gives 21/8
- So, 21/14 + 9/8 = 21/8
In mixed form: 25/8
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