Add 80/21 and 63/8
1st number: 3 17/21, 2nd number: 7 7/8
80/21 + 63/8 is 1963/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
80/21 = 80 × 8/21 × 8 = 640/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
63/8 = 63 × 21/8 × 21 = 1323/168 - Add the two like fractions:
640/168 + 1323/168 = 640 + 1323/168 = 1963/168 - So, 80/21 + 63/8 = 1963/168
In mixed form: 11115/168
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