Add 18/25 and 21/63
18/25 + 21/63 is 79/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
18/25 = 18 × 63/25 × 63 = 1134/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
21/63 = 21 × 25/63 × 25 = 525/1575 - Add the two like fractions:
1134/1575 + 525/1575 = 1134 + 525/1575 = 1659/1575 - 1659/1575 simplified gives 79/75
- So, 18/25 + 21/63 = 79/75
In mixed form: 14/75
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