Add 42/2 and 21/70
1st number: 21 0/2, 2nd number: 21/70
42/2 + 21/70 is 213/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
42/2 = 42 × 35/2 × 35 = 1470/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Add the two like fractions:
1470/70 + 21/70 = 1470 + 21/70 = 1491/70 - 1491/70 simplified gives 213/10
- So, 42/2 + 21/70 = 213/10
In mixed form: 213/10
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