Add 40/12 and 72/70
1st number: 3 4/12, 2nd number: 1 2/70
40/12 + 72/70 is 458/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
40/12 = 40 × 35/12 × 35 = 1400/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
72/70 = 72 × 6/70 × 6 = 432/420 - Add the two like fractions:
1400/420 + 432/420 = 1400 + 432/420 = 1832/420 - 1832/420 simplified gives 458/105
- So, 40/12 + 72/70 = 458/105
In mixed form: 438/105
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