Add 20/49 and 81/72
1st number: 20/49, 2nd number: 1 9/72
20/49 + 81/72 is 601/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
20/49 = 20 × 72/49 × 72 = 1440/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
81/72 = 81 × 49/72 × 49 = 3969/3528 - Add the two like fractions:
1440/3528 + 3969/3528 = 1440 + 3969/3528 = 5409/3528 - 5409/3528 simplified gives 601/392
- So, 20/49 + 81/72 = 601/392
In mixed form: 1209/392
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