Add 28/40 and 25/63
28/40 + 25/63 is 691/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
28/40 = 28 × 63/40 × 63 = 1764/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
25/63 = 25 × 40/63 × 40 = 1000/2520 - Add the two like fractions:
1764/2520 + 1000/2520 = 1764 + 1000/2520 = 2764/2520 - 2764/2520 simplified gives 691/630
- So, 28/40 + 25/63 = 691/630
In mixed form: 161/630
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