Add 90/80 and 21/40
1st number: 1 10/80, 2nd number: 21/40
90/80 + 21/40 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 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 40 × 2 = 80,
21/40 = 21 × 2/40 × 2 = 42/80 - Add the two like fractions:
90/80 + 42/80 = 90 + 42/80 = 132/80 - 132/80 simplified gives 33/20
- So, 90/80 + 21/40 = 33/20
In mixed form: 113/20
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