Add 40/70 and 8/12
40/70 + 8/12 is 26/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
40/70 = 40 × 6/70 × 6 = 240/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
8/12 = 8 × 35/12 × 35 = 280/420 - Add the two like fractions:
240/420 + 280/420 = 240 + 280/420 = 520/420 - 520/420 simplified gives 26/21
- So, 40/70 + 8/12 = 26/21
In mixed form: 15/21
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