Add 50/70 and 49/21
1st number: 50/70, 2nd number: 2 7/21
50/70 + 49/21 is 64/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
50/70 = 50 × 3/70 × 3 = 150/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
49/21 = 49 × 10/21 × 10 = 490/210 - Add the two like fractions:
150/210 + 490/210 = 150 + 490/210 = 640/210 - 640/210 simplified gives 64/21
- So, 50/70 + 49/21 = 64/21
In mixed form: 31/21
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