Add 72/21 and 75/49
1st number: 3 9/21, 2nd number: 1 26/49
72/21 + 75/49 is 243/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
72/21 = 72 × 7/21 × 7 = 504/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
75/49 = 75 × 3/49 × 3 = 225/147 - Add the two like fractions:
504/147 + 225/147 = 504 + 225/147 = 729/147 - 729/147 simplified gives 243/49
- So, 72/21 + 75/49 = 243/49
In mixed form: 447/49
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