Add 30/21 and 12/10
1st number: 1 9/21, 2nd number: 1 2/10
30/21 + 12/10 is 92/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
30/21 = 30 × 10/21 × 10 = 300/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210 - Add the two like fractions:
300/210 + 252/210 = 300 + 252/210 = 552/210 - 552/210 simplified gives 92/35
- So, 30/21 + 12/10 = 92/35
In mixed form: 222/35
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