Add 12/63 and 40/70
12/63 + 40/70 is 16/21.
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,
12/63 = 12 × 10/63 × 10 = 120/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Add the two like fractions:
120/630 + 360/630 = 120 + 360/630 = 480/630 - 480/630 simplified gives 16/21
- So, 12/63 + 40/70 = 16/21
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