Add 15/10 and 21/35
1st number: 1 5/10, 2nd number: 21/35
15/10 + 21/35 is 21/10.
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,
15/10 = 15 × 7/10 × 7 = 105/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Add the two like fractions:
105/70 + 42/70 = 105 + 42/70 = 147/70 - 147/70 simplified gives 21/10
- So, 15/10 + 21/35 = 21/10
In mixed form: 21/10
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