Add 21/36 and 70/10
1st number: 21/36, 2nd number: 7 0/10
21/36 + 70/10 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Likewise, for the 2nd fraction, since 10 × 18 = 180,
70/10 = 70 × 18/10 × 18 = 1260/180 - Add the two like fractions:
105/180 + 1260/180 = 105 + 1260/180 = 1365/180 - 1365/180 simplified gives 91/12
- So, 21/36 + 70/10 = 91/12
In mixed form: 77/12
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