Add 70/12 and 15/20
1st number: 5 10/12, 2nd number: 15/20
70/12 + 15/20 is 79/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Add the two like fractions:
350/60 + 45/60 = 350 + 45/60 = 395/60 - 395/60 simplified gives 79/12
- So, 70/12 + 15/20 = 79/12
In mixed form: 67/12
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