Add 21/72 and 72/10
1st number: 21/72, 2nd number: 7 2/10
21/72 + 72/10 is 899/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
72/10 = 72 × 36/10 × 36 = 2592/360 - Add the two like fractions:
105/360 + 2592/360 = 105 + 2592/360 = 2697/360 - 2697/360 simplified gives 899/120
- So, 21/72 + 72/10 = 899/120
In mixed form: 759/120
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