Add 81/20 and 70/80
1st number: 4 1/20, 2nd number: 70/80
81/20 + 70/80 is 197/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
81/20 = 81 × 4/20 × 4 = 324/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Add the two like fractions:
324/80 + 70/80 = 324 + 70/80 = 394/80 - 394/80 simplified gives 197/40
- So, 81/20 + 70/80 = 197/40
In mixed form: 437/40
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