Add 90/80 and 81/20
1st number: 1 10/80, 2nd number: 4 1/20
90/80 + 81/20 is 207/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
81/20 = 81 × 4/20 × 4 = 324/80 - Add the two like fractions:
90/80 + 324/80 = 90 + 324/80 = 414/80 - 414/80 simplified gives 207/40
- So, 90/80 + 81/20 = 207/40
In mixed form: 57/40
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