Add 30/40 and 60/63
30/40 + 60/63 is 143/84.
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,
30/40 = 30 × 63/40 × 63 = 1890/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
60/63 = 60 × 40/63 × 40 = 2400/2520 - Add the two like fractions:
1890/2520 + 2400/2520 = 1890 + 2400/2520 = 4290/2520 - 4290/2520 simplified gives 143/84
- So, 30/40 + 60/63 = 143/84
In mixed form: 159/84
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