Add 45/25 and 21/72
1st number: 1 20/25, 2nd number: 21/72
45/25 + 21/72 is 251/120.
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,
45/25 = 45 × 72/25 × 72 = 3240/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
21/72 = 21 × 25/72 × 25 = 525/1800 - Add the two like fractions:
3240/1800 + 525/1800 = 3240 + 525/1800 = 3765/1800 - 3765/1800 simplified gives 251/120
- So, 45/25 + 21/72 = 251/120
In mixed form: 211/120
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