Add 28/63 and 25/40
28/63 + 25/40 is 77/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
28/63 = 28 × 40/63 × 40 = 1120/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
25/40 = 25 × 63/40 × 63 = 1575/2520 - Add the two like fractions:
1120/2520 + 1575/2520 = 1120 + 1575/2520 = 2695/2520 - 2695/2520 simplified gives 77/72
- So, 28/63 + 25/40 = 77/72
In mixed form: 15/72
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