Add 84/4 and 72/63
1st number: 21 0/4, 2nd number: 1 9/63
84/4 + 72/63 is 155/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
84/4 = 84 × 63/4 × 63 = 5292/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Add the two like fractions:
5292/252 + 288/252 = 5292 + 288/252 = 5580/252 - 5580/252 simplified gives 155/7
- So, 84/4 + 72/63 = 155/7
In mixed form: 221/7
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