Add 15/63 and 9/40
15/63 + 9/40 is 389/840.
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,
15/63 = 15 × 40/63 × 40 = 600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
9/40 = 9 × 63/40 × 63 = 567/2520 - Add the two like fractions:
600/2520 + 567/2520 = 600 + 567/2520 = 1167/2520 - 1167/2520 simplified gives 389/840
- So, 15/63 + 9/40 = 389/840
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