Add 5/4 and 21/7
1st number: 1 1/4, 2nd number: 3 0/7
5/4 + 21/7 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
5/4 = 5 × 7/4 × 7 = 35/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
21/7 = 21 × 4/7 × 4 = 84/28 - Add the two like fractions:
35/28 + 84/28 = 35 + 84/28 = 119/28 - 119/28 simplified gives 17/4
- So, 5/4 + 21/7 = 17/4
In mixed form: 41/4
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