Add 25/21 and 28/72
1st number: 1 4/21, 2nd number: 28/72
25/21 + 28/72 is 199/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
25/21 = 25 × 24/21 × 24 = 600/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Add the two like fractions:
600/504 + 196/504 = 600 + 196/504 = 796/504 - 796/504 simplified gives 199/126
- So, 25/21 + 28/72 = 199/126
In mixed form: 173/126
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