Add 21/84 and 80/50
1st number: 21/84, 2nd number: 1 30/50
21/84 + 80/50 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
21/84 = 21 × 25/84 × 25 = 525/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
80/50 = 80 × 42/50 × 42 = 3360/2100 - Add the two like fractions:
525/2100 + 3360/2100 = 525 + 3360/2100 = 3885/2100 - 3885/2100 simplified gives 37/20
- So, 21/84 + 80/50 = 37/20
In mixed form: 117/20
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