Add 15/40 and 56/63
15/40 + 56/63 is 91/72.
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,
15/40 = 15 × 63/40 × 63 = 945/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
56/63 = 56 × 40/63 × 40 = 2240/2520 - Add the two like fractions:
945/2520 + 2240/2520 = 945 + 2240/2520 = 3185/2520 - 3185/2520 simplified gives 91/72
- So, 15/40 + 56/63 = 91/72
In mixed form: 119/72
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