Add 81/75 and 72/63
1st number: 1 6/75, 2nd number: 1 9/63
81/75 + 72/63 is 389/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
81/75 = 81 × 21/75 × 21 = 1701/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
72/63 = 72 × 25/63 × 25 = 1800/1575 - Add the two like fractions:
1701/1575 + 1800/1575 = 1701 + 1800/1575 = 3501/1575 - 3501/1575 simplified gives 389/175
- So, 81/75 + 72/63 = 389/175
In mixed form: 239/175
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