Add 70/8 and 21/80
1st number: 8 6/8, 2nd number: 21/80
70/8 + 21/80 is 721/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
70/8 = 70 × 10/8 × 10 = 700/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
21/80 = 21 × 1/80 × 1 = 21/80 - Add the two like fractions:
700/80 + 21/80 = 700 + 21/80 = 721/80 - So, 70/8 + 21/80 = 721/80
In mixed form: 91/80
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