Add 21/90 and 70/27
1st number: 21/90, 2nd number: 2 16/27
21/90 + 70/27 is 763/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
70/27 = 70 × 10/27 × 10 = 700/270 - Add the two like fractions:
63/270 + 700/270 = 63 + 700/270 = 763/270 - So, 21/90 + 70/27 = 763/270
In mixed form: 2223/270
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