Add 30/63 and 12/70
30/63 + 12/70 is 68/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
30/63 = 30 × 10/63 × 10 = 300/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
300/630 + 108/630 = 300 + 108/630 = 408/630 - 408/630 simplified gives 68/105
- So, 30/63 + 12/70 = 68/105
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