Add 70/12 and 70/15
1st number: 5 10/12, 2nd number: 4 10/15
70/12 + 70/15 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 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 15 × 4 = 60,
70/15 = 70 × 4/15 × 4 = 280/60 - Add the two like fractions:
350/60 + 280/60 = 350 + 280/60 = 630/60 - 630/60 simplified gives 21/2
- So, 70/12 + 70/15 = 21/2
In mixed form: 101/2
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