Add 21/5 and 90/80
1st number: 4 1/5, 2nd number: 1 10/80
21/5 + 90/80 is 213/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Add the two like fractions:
336/80 + 90/80 = 336 + 90/80 = 426/80 - 426/80 simplified gives 213/40
- So, 21/5 + 90/80 = 213/40
In mixed form: 513/40
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