Add 21/14 and 90/10
1st number: 1 7/14, 2nd number: 9 0/10
21/14 + 90/10 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
90/10 = 90 × 7/10 × 7 = 630/70 - Add the two like fractions:
105/70 + 630/70 = 105 + 630/70 = 735/70 - 735/70 simplified gives 21/2
- So, 21/14 + 90/10 = 21/2
In mixed form: 101/2
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