Add 72/70 and 20/12
1st number: 1 2/70, 2nd number: 1 8/12
72/70 + 20/12 is 283/105.
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,
72/70 = 72 × 6/70 × 6 = 432/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
20/12 = 20 × 35/12 × 35 = 700/420 - Add the two like fractions:
432/420 + 700/420 = 432 + 700/420 = 1132/420 - 1132/420 simplified gives 283/105
- So, 72/70 + 20/12 = 283/105
In mixed form: 273/105
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