Add 42/70 and 21/10
1st number: 42/70, 2nd number: 2 1/10
42/70 + 21/10 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
42/70 = 42 × 1/70 × 1 = 42/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
21/10 = 21 × 7/10 × 7 = 147/70 - Add the two like fractions:
42/70 + 147/70 = 42 + 147/70 = 189/70 - 189/70 simplified gives 27/10
- So, 42/70 + 21/10 = 27/10
In mixed form: 27/10
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