Add 21/10 and 42/35
1st number: 2 1/10, 2nd number: 1 7/35
21/10 + 42/35 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
21/10 = 21 × 7/10 × 7 = 147/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
42/35 = 42 × 2/35 × 2 = 84/70 - Add the two like fractions:
147/70 + 84/70 = 147 + 84/70 = 231/70 - 231/70 simplified gives 33/10
- So, 21/10 + 42/35 = 33/10
In mixed form: 33/10
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