Add 70/21 and 50/70
1st number: 3 7/21, 2nd number: 50/70
70/21 + 50/70 is 85/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
50/70 = 50 × 3/70 × 3 = 150/210 - Add the two like fractions:
700/210 + 150/210 = 700 + 150/210 = 850/210 - 850/210 simplified gives 85/21
- So, 70/21 + 50/70 = 85/21
In mixed form: 41/21
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