Add 21/9 and 12/70
1st number: 2 3/9, 2nd number: 12/70
21/9 + 12/70 is 263/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
21/9 = 21 × 70/9 × 70 = 1470/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
1470/630 + 108/630 = 1470 + 108/630 = 1578/630 - 1578/630 simplified gives 263/105
- So, 21/9 + 12/70 = 263/105
In mixed form: 253/105
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