Add 21/10 and 70/75
1st number: 2 1/10, 2nd number: 70/75
21/10 + 70/75 is 91/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 10 × 15 = 150,
21/10 = 21 × 15/10 × 15 = 315/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
70/75 = 70 × 2/75 × 2 = 140/150 - Add the two like fractions:
315/150 + 140/150 = 315 + 140/150 = 455/150 - 455/150 simplified gives 91/30
- So, 21/10 + 70/75 = 91/30
In mixed form: 31/30
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