Add 21/25 and 1/72
21/25 + 1/72 is 1537/1800.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 25 × 72 = 1800,
21/25 = 21 × 72/25 × 72 = 1512/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
1/72 = 1 × 25/72 × 25 = 25/1800 - Add the two like fractions:
1512/1800 + 25/1800 = 1512 + 25/1800 = 1537/1800 - So, 21/25 + 1/72 = 1537/1800
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