Add 70/15 and 21/54
1st number: 4 10/15, 2nd number: 21/54
70/15 + 21/54 is 91/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
70/15 = 70 × 18/15 × 18 = 1260/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Add the two like fractions:
1260/270 + 105/270 = 1260 + 105/270 = 1365/270 - 1365/270 simplified gives 91/18
- So, 70/15 + 21/54 = 91/18
In mixed form: 51/18
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