Add 21/35 and 15/10
1st number: 21/35, 2nd number: 1 5/10
21/35 + 15/10 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
15/10 = 15 × 7/10 × 7 = 105/70 - Add the two like fractions:
42/70 + 105/70 = 42 + 105/70 = 147/70 - 147/70 simplified gives 21/10
- So, 21/35 + 15/10 = 21/10
In mixed form: 21/10
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