Add 70/50 and 21/84
1st number: 1 20/50, 2nd number: 21/84
70/50 + 21/84 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 50 × 42 = 2100,
70/50 = 70 × 42/50 × 42 = 2940/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
21/84 = 21 × 25/84 × 25 = 525/2100 - Add the two like fractions:
2940/2100 + 525/2100 = 2940 + 525/2100 = 3465/2100 - 3465/2100 simplified gives 33/20
- So, 70/50 + 21/84 = 33/20
In mixed form: 113/20
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