Add 15/45 and 4/56
15/45 + 4/56 is 17/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
15/45 = 15 × 56/45 × 56 = 840/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
4/56 = 4 × 45/56 × 45 = 180/2520 - Add the two like fractions:
840/2520 + 180/2520 = 840 + 180/2520 = 1020/2520 - 1020/2520 simplified gives 17/42
- So, 15/45 + 4/56 = 17/42
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