Add 7/56 and 21/45
7/56 + 21/45 is 71/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
7/56 = 7 × 45/56 × 45 = 315/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
21/45 = 21 × 56/45 × 56 = 1176/2520 - Add the two like fractions:
315/2520 + 1176/2520 = 315 + 1176/2520 = 1491/2520 - 1491/2520 simplified gives 71/120
- So, 7/56 + 21/45 = 71/120
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