Add 63/21 and 90/4
1st number: 3 0/21, 2nd number: 22 2/4
63/21 + 90/4 is 51/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
63/21 = 63 × 4/21 × 4 = 252/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
90/4 = 90 × 21/4 × 21 = 1890/84 - Add the two like fractions:
252/84 + 1890/84 = 252 + 1890/84 = 2142/84 - 2142/84 simplified gives 51/2
- So, 63/21 + 90/4 = 51/2
In mixed form: 251/2
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