Add 10/70 and 81/21
1st number: 10/70, 2nd number: 3 18/21
10/70 + 81/21 is 4/1.
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,
10/70 = 10 × 3/70 × 3 = 30/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
81/21 = 81 × 10/21 × 10 = 810/210 - Add the two like fractions:
30/210 + 810/210 = 30 + 810/210 = 840/210 - 840/210 simplified gives 4/1
- So, 10/70 + 81/21 = 4/1
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