Add 4/40 and 45/63
4/40 + 45/63 is 57/70.
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,
4/40 = 4 × 63/40 × 63 = 252/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
45/63 = 45 × 40/63 × 40 = 1800/2520 - Add the two like fractions:
252/2520 + 1800/2520 = 252 + 1800/2520 = 2052/2520 - 2052/2520 simplified gives 57/70
- So, 4/40 + 45/63 = 57/70
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